CWE-59
AllowedImproper Link Resolution Before File Access ('Link Following')
Abstraction: Base · Status: Draft
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
1990 vulnerabilities reference this CWE, most recent first.
GHSA-2C78-596M-9G6P
Vulnerability from github – Published: 2024-03-28 21:30 – Updated: 2024-03-28 21:30Dell PowerScale OneFS versions 9.4.0.x through 9.7.0.x contains an UNIX symbolic link (symlink) following vulnerability. A local high privileged attacker could potentially exploit this vulnerability, leading to denial of service, information tampering.
{
"affected": [],
"aliases": [
"CVE-2024-25953"
],
"database_specific": {
"cwe_ids": [
"CWE-59",
"CWE-61"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-28T19:15:47Z",
"severity": "MODERATE"
},
"details": "Dell PowerScale OneFS versions 9.4.0.x through 9.7.0.x contains an UNIX symbolic link (symlink) following vulnerability. A local high privileged attacker could potentially exploit this vulnerability, leading to denial of service, information tampering.",
"id": "GHSA-2c78-596m-9g6p",
"modified": "2024-03-28T21:30:31Z",
"published": "2024-03-28T21:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-25953"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/kbdoc/en-us/000223366/dsa-2024-115-security-update-for-dell-powerscale-onefs-for-multiple-security-vulnerabilities"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-2C79-H2H5-G3FW
Vulnerability from github – Published: 2022-05-24 19:19 – Updated: 2022-12-16 20:33The agent-to-controller security subsystem limits which files on the Jenkins controller can be accessed by agent processes.
Multiple vulnerabilities in the file path filtering implementation of Jenkins 2.318 and earlier, LTS 2.303.2 and earlier allow agent processes to read and write arbitrary files on the Jenkins controller file system, and obtain some information about Jenkins controller file systems.
SECURITY-2531 / CVE-2021-21691: Creating symbolic links is possible without the symlink permission.
We expect that most of these vulnerabilities have been present since SECURITY-144 was addressed in the 2014-10-30 security advisory.
Jenkins 2.319, LTS 2.303.3 addresses these security vulnerabilities.
SECURITY-2531 / CVE-2021-21691: Creating symbolic links now correctly checks the symlink permission.
As some common operations are now newly subject to access control, it is expected that plugins sending commands from agents to the controller may start failing. Additionally, the newly introduced path canonicalization means that instances using a custom builds directory (Java system property jenkins.model.Jenkins.buildsDir) or partitioning JENKINS_HOME using symbolic links may fail access control checks. See the documentation for how to customize the configuration in case of problems.
If you are unable to immediately upgrade to Jenkins 2.319, LTS 2.303.3, you can install the Remoting Security Workaround Plugin. It will prevent all agent-to-controller file access using FilePath APIs. Because it is more restrictive than Jenkins 2.319, LTS 2.303.3, more plugins are incompatible with it. Make sure to read the plugin documentation before installing it.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 2.303.2"
},
"package": {
"ecosystem": "Maven",
"name": "org.jenkins-ci.main:jenkins-core"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.303.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 2.318"
},
"package": {
"ecosystem": "Maven",
"name": "org.jenkins-ci.main:jenkins-core"
},
"ranges": [
{
"events": [
{
"introduced": "2.304"
},
{
"fixed": "2.319"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-21691"
],
"database_specific": {
"cwe_ids": [
"CWE-59",
"CWE-863"
],
"github_reviewed": true,
"github_reviewed_at": "2022-06-23T06:48:06Z",
"nvd_published_at": "2021-11-04T17:15:00Z",
"severity": "CRITICAL"
},
"details": "The agent-to-controller security subsystem limits which files on the Jenkins controller can be accessed by agent processes.\n\nMultiple vulnerabilities in the file path filtering implementation of Jenkins 2.318 and earlier, LTS 2.303.2 and earlier allow agent processes to read and write arbitrary files on the Jenkins controller file system, and obtain some information about Jenkins controller file systems.\n\nSECURITY-2531 / CVE-2021-21691: Creating symbolic links is possible without the `symlink` permission.\n\nWe expect that most of these vulnerabilities have been present since [SECURITY-144 was addressed in the 2014-10-30 security advisory](https://www.jenkins.io/security/advisory/2014-10-30/).\n\nJenkins 2.319, LTS 2.303.3 addresses these security vulnerabilities.\n\nSECURITY-2531 / CVE-2021-21691: Creating symbolic links now correctly checks the `symlink` permission.\n\nAs some common operations are now newly subject to access control, it is expected that plugins sending commands from agents to the controller may start failing. Additionally, the newly introduced path canonicalization means that instances using a custom builds directory ([Java system property jenkins.model.Jenkins.buildsDir](https://www.jenkins.io/doc/book/managing/system-properties/#jenkins-model-jenkins-buildsdir)) or partitioning `JENKINS_HOME` using symbolic links may fail access control checks. See [the documentation](https://www.jenkins.io/doc/book/security/controller-isolation/agent-to-controller/#file-access-rules) for how to customize the configuration in case of problems.\n\nIf you are unable to immediately upgrade to Jenkins 2.319, LTS 2.303.3, you can install the [Remoting Security Workaround Plugin](https://www.jenkins.io/redirect/remoting-security-workaround/). It will prevent all agent-to-controller file access using `FilePath` APIs. Because it is more restrictive than Jenkins 2.319, LTS 2.303.3, more plugins are incompatible with it. Make sure to read the plugin documentation before installing it.",
"id": "GHSA-2c79-h2h5-g3fw",
"modified": "2022-12-16T20:33:58Z",
"published": "2022-05-24T19:19:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21691"
},
{
"type": "WEB",
"url": "https://github.com/jenkinsci/jenkins/commit/63cde2daadc705edf086f2213b48c8c547f98358"
},
{
"type": "PACKAGE",
"url": "https://github.com/jenkinsci/jenkins"
},
{
"type": "WEB",
"url": "https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins"
}
GHSA-2CC5-8MH8-5C99
Vulnerability from github – Published: 2022-05-14 03:51 – Updated: 2022-05-14 03:51The rs_filter_graph function in librawstudio/rs-filter.c in rawstudio might allow local users to truncate arbitrary files via a symlink attack on (1) /tmp/rs-filter-graph.png or (2) /tmp/rs-filter-graph.
{
"affected": [],
"aliases": [
"CVE-2014-4978"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-12-29T22:29:00Z",
"severity": "MODERATE"
},
"details": "The rs_filter_graph function in librawstudio/rs-filter.c in rawstudio might allow local users to truncate arbitrary files via a symlink attack on (1) /tmp/rs-filter-graph.png or (2) /tmp/rs-filter-graph.",
"id": "GHSA-2cc5-8mh8-5c99",
"modified": "2022-05-14T03:51:10Z",
"published": "2022-05-14T03:51:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-4978"
},
{
"type": "WEB",
"url": "https://github.com/rawstudio/rawstudio/commit/9c2cd3c93c05d009a91d84eedbb85873b0cb505d"
},
{
"type": "WEB",
"url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=754899"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1120093"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/94633"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162109.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2014/07/16/15"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/68671"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-2CQF-MG5G-39XV
Vulnerability from github – Published: 2026-02-03 18:30 – Updated: 2026-02-05 15:31An Incorrect Symlink Follow vulnerability exists in multiple Yottamaster NAS devices, including DM2 (version equal to or prior to V1.9.12), DM3 (version equal to or prior to V1.9.12), and DM200 (version equal to or prior to V1.2.23) that could be exploited by attackers to leak or tamper with the internal file system. Attackers can format a USB drive to ext4, create a symbolic link to its root directory, insert the drive into the NAS device's slot, then access the USB drive's symlink directory mounted on the NAS to obtain all files within the NAS system and tamper with those files.
{
"affected": [],
"aliases": [
"CVE-2025-69430"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-03T18:16:16Z",
"severity": "CRITICAL"
},
"details": "An Incorrect Symlink Follow vulnerability exists in multiple Yottamaster NAS devices, including DM2 (version equal to or prior to V1.9.12), DM3 (version equal to or prior to V1.9.12), and DM200 (version equal to or prior to V1.2.23) that could be exploited by attackers to leak or tamper with the internal file system. Attackers can format a USB drive to ext4, create a symbolic link to its root directory, insert the drive into the NAS device\u0027s slot, then access the USB drive\u0027s symlink directory mounted on the NAS to obtain all files within the NAS system and tamper with those files.",
"id": "GHSA-2cqf-mg5g-39xv",
"modified": "2026-02-05T15:31:09Z",
"published": "2026-02-03T18:30:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-69430"
},
{
"type": "WEB",
"url": "https://www.notion.so/Yottamaster-Incorrect-Symlink-Follow-2c36cf4e528a8001b37cdad4be7431f8?source=copy_link"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-2CWR-F5HX-GG3W
Vulnerability from github – Published: 2026-03-19 03:30 – Updated: 2026-03-19 16:26Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-cfvj-7rx7-fc7c. This link is maintained to preserve external references.
Original Description
OpenClaw versions prior to 2026.3.2 contain a vulnerability in the stageSandboxMedia function in which it fails to validate destination symlinks during media staging, allowing writes to follow symlinks outside the sandbox workspace. Attackers can exploit this by placing symlinks in the media/inbound directory to overwrite arbitrary files on the host system outside sandbox boundaries.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "openclaw"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2026.3.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-19T16:26:19Z",
"nvd_published_at": "2026-03-19T02:16:03Z",
"severity": "MODERATE"
},
"details": "## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-cfvj-7rx7-fc7c. This link is maintained to preserve external references.\n\n## Original Description\nOpenClaw versions prior to 2026.3.2 contain a vulnerability in the stageSandboxMedia function in which it fails to validate destination symlinks during media staging, allowing writes to follow symlinks outside the sandbox workspace. Attackers can exploit this by placing symlinks in the media/inbound directory to overwrite arbitrary files on the host system outside sandbox boundaries.",
"id": "GHSA-2cwr-f5hx-gg3w",
"modified": "2026-03-19T16:26:19Z",
"published": "2026-03-19T03:30:57Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-cfvj-7rx7-fc7c"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31990"
},
{
"type": "WEB",
"url": "https://github.com/openclaw/openclaw/commit/17ede52a4be3034f6ec4b883ac6b81ad0101558a"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/openclaw-symlink-traversal-in-stagesandboxmedia-destination"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
],
"summary": "Duplicate Advisory: OpenClaw: stageSandboxMedia destination symlink traversal can overwrite files outside sandbox workspace",
"withdrawn": "2026-03-19T16:26:19Z"
}
GHSA-2F6X-V9QJ-8F54
Vulnerability from github – Published: 2022-05-17 04:37 – Updated: 2025-04-12 12:36The (1) mkxmltype and (2) mkdtskel scripts in XML-DT before 0.64 allow local users to overwrite arbitrary files via a symlink attack on a /tmp/xml##### temporary file.
{
"affected": [],
"aliases": [
"CVE-2014-5260"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-08-16T04:39:00Z",
"severity": "MODERATE"
},
"details": "The (1) mkxmltype and (2) mkdtskel scripts in XML-DT before 0.64 allow local users to overwrite arbitrary files via a symlink attack on a /tmp/_xml_##### temporary file.",
"id": "GHSA-2f6x-v9qj-8f54",
"modified": "2025-04-12T12:36:38Z",
"published": "2022-05-17T04:37:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-5260"
},
{
"type": "WEB",
"url": "https://bugs.debian.org/756566"
},
{
"type": "WEB",
"url": "https://metacpan.org/diff/file?target=AMBS/XML-DT-0.64/\u0026source=AMBS/XML-DT-0.63"
},
{
"type": "WEB",
"url": "https://metacpan.org/source/AMBS/XML-DT-0.66/Changes"
},
{
"type": "WEB",
"url": "http://openwall.com/lists/oss-security/2014/08/15/8"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-2FC2-6R4J-P65H
Vulnerability from github – Published: 2022-05-14 01:08 – Updated: 2024-10-01 21:12(1) core/tests/test_memmap.py, (2) core/tests/test_multiarray.py, (3) f2py/f2py2e.py, and (4) lib/tests/test_io.py in NumPy before 1.8.1 allow local users to write to arbitrary files via a symlink attack on a temporary file.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "numpy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.8.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2014-1859"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": true,
"github_reviewed_at": "2022-06-17T21:06:08Z",
"nvd_published_at": "2018-01-08T19:29:00Z",
"severity": "HIGH"
},
"details": "(1) core/tests/test_memmap.py, (2) core/tests/test_multiarray.py, (3) f2py/f2py2e.py, and (4) lib/tests/test_io.py in NumPy before 1.8.1 allow local users to write to arbitrary files via a symlink attack on a temporary file.",
"id": "GHSA-2fc2-6r4j-p65h",
"modified": "2024-10-01T21:12:23Z",
"published": "2022-05-14T01:08:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-1859"
},
{
"type": "WEB",
"url": "https://github.com/numpy/numpy/pull/4262"
},
{
"type": "WEB",
"url": "https://github.com/numpy/numpy/commit/0bb46c1448b0d3f5453d5182a17ea7ac5854ee15"
},
{
"type": "WEB",
"url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=737778"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1062009"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/91317"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-2fc2-6r4j-p65h"
},
{
"type": "PACKAGE",
"url": "https://github.com/numpy/numpy"
},
{
"type": "WEB",
"url": "https://github.com/numpy/numpy/blob/maintenance/1.8.x/doc/release/1.8.1-notes.rst"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/numpy/PYSEC-2018-34.yaml"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20200228165750/http://www.securityfocus.com/bid/65440"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128358.html"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128781.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2014/02/08/3"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Numpy arbitrary file write via symlink attack"
}
GHSA-2FFP-P9MJ-92CF
Vulnerability from github – Published: 2022-05-24 17:10 – Updated: 2025-10-22 00:31An elevation of privilege vulnerability exists when the Windows Background Intelligent Transfer Service (BITS) improperly handles symbolic links, aka 'Windows Background Intelligent Transfer Service Elevation of Privilege Vulnerability'.
{
"affected": [],
"aliases": [
"CVE-2020-0787"
],
"database_specific": {
"cwe_ids": [
"CWE-269",
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-03-12T16:15:00Z",
"severity": "HIGH"
},
"details": "An elevation of privilege vulnerability exists when the Windows Background Intelligent Transfer Service (BITS) improperly handles symbolic links, aka \u0027Windows Background Intelligent Transfer Service Elevation of Privilege Vulnerability\u0027.",
"id": "GHSA-2ffp-p9mj-92cf",
"modified": "2025-10-22T00:31:51Z",
"published": "2022-05-24T17:10:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-0787"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0787"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0787"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/158056/Background-Intelligent-Transfer-Service-Privilege-Escalation.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-2G5J-5X95-R6HR
Vulnerability from github – Published: 2023-02-06 23:16 – Updated: 2023-02-06 23:16HashiCorp go-slug before 0.5.0 does not address attempts at directory traversal involving ../ and symlinks.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/hashicorp/go-slug"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.5.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-29529"
],
"database_specific": {
"cwe_ids": [
"CWE-22",
"CWE-59"
],
"github_reviewed": true,
"github_reviewed_at": "2023-02-06T23:16:16Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "HashiCorp go-slug before 0.5.0 does not address attempts at directory traversal involving ../ and symlinks.",
"id": "GHSA-2g5j-5x95-r6hr",
"modified": "2023-02-06T23:16:16Z",
"published": "2023-02-06T23:16:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-29529"
},
{
"type": "WEB",
"url": "https://github.com/hashicorp/go-slug/pull/12"
},
{
"type": "WEB",
"url": "https://github.com/hashicorp/go-slug/commit/28cafc59c8da6126a3ae94dfa84181df4073454f"
},
{
"type": "WEB",
"url": "https://github.com/hashicorp/go-slug/commit/764785bc4cbb9e600ad1cf1a6bd21b535c182983"
},
{
"type": "PACKAGE",
"url": "https://github.com/hashicorp/go-slug"
},
{
"type": "WEB",
"url": "https://github.com/hashicorp/go-slug/compare/v0.4.3...v0.5.0"
},
{
"type": "WEB",
"url": "https://github.com/hashicorp/go-slug/releases/tag/v0.5.0"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2021-0094"
},
{
"type": "ADVISORY",
"url": "https://securitylab.github.com/advisories/GHSL-2020-262-zipslip-go-slug"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Unsafe tar unpacking in HashiCorp go-slug"
}
GHSA-2GPQ-3P2H-4848
Vulnerability from github – Published: 2025-06-06 21:30 – Updated: 2025-06-06 21:302BrightSparks SyncBackFree Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of 2BrightSparks SyncBackFree. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. User interaction on the part of an administrator is also required.
The specific flaw exists within the Mirror functionality. By creating a junction, an attacker can abuse the service to delete arbitrary files. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-26962.
{
"affected": [],
"aliases": [
"CVE-2025-5474"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-06T19:15:27Z",
"severity": "HIGH"
},
"details": "2BrightSparks SyncBackFree Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of 2BrightSparks SyncBackFree. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. User interaction on the part of an administrator is also required.\n\nThe specific flaw exists within the Mirror functionality. By creating a junction, an attacker can abuse the service to delete arbitrary files. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-26962.",
"id": "GHSA-2gpq-3p2h-4848",
"modified": "2025-06-06T21:30:28Z",
"published": "2025-06-06T21:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5474"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-322"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-48.1
Strategy: Separation of Privilege
- Follow the principle of least privilege when assigning access rights to entities in a software system.
- Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.
CAPEC-132: Symlink Attack
An adversary positions a symbolic link in such a manner that the targeted user or application accesses the link's endpoint, assuming that it is accessing a file with the link's name.
CAPEC-17: Using Malicious Files
An attack of this type exploits a system's configuration that allows an adversary to either directly access an executable file, for example through shell access; or in a possible worst case allows an adversary to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
CAPEC-35: Leverage Executable Code in Non-Executable Files
An attack of this type exploits a system's trust in configuration and resource files. When the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high.
CAPEC-76: Manipulating Web Input to File System Calls
An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.