Common Weakness Enumeration
CWE-942
AllowedPermissive Cross-domain Security Policy with Untrusted Domains
Abstraction: Variant · Status: Incomplete
The product uses a web-client protection mechanism such as a Content Security Policy (CSP) or cross-domain policy file, but the policy includes untrusted domains with which the web client is allowed to communicate.
224 vulnerabilities reference this CWE, most recent first.
CVE-2023-36829 (GCVE-0-2023-36829)
Vulnerability from cvelistv5 – Published: 2023-07-06 22:08 – Updated: 2024-11-06 16:44
VLAI
EPSS
VEX
Title
Sentry CORS misconfiguration vulnerability
Summary
Sentry is an error tracking and performance monitoring platform. Starting in version 23.6.0 and prior to version 23.6.2, the Sentry API incorrectly returns the `access-control-allow-credentials: true` HTTP header if the `Origin` request header ends with the `system.base-hostname` option of Sentry installation. This only affects installations that have `system.base-hostname` option explicitly set, as it is empty by default. Impact is limited since recent versions of major browsers have cross-site cookie blocking enabled by default. However, this flaw could allow other multi-step attacks. The patch has been released in Sentry 23.6.2.
Severity
6.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-06 16:41 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/getsentry/sentry/security/advi… | x_refsource_CONFIRM |
| https://github.com/getsentry/sentry/pull/52276 | x_refsource_MISC |
| https://github.com/getsentry/sentry/commit/ee44c6… | x_refsource_MISC |
| https://github.com/getsentry/self-hosted/releases… | x_refsource_MISC |
Impacted products
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CVE-2023-25603 (GCVE-0-2023-25603)
Vulnerability from cvelistv5 – Published: 2023-11-14 18:08 – Updated: 2024-08-30 18:07
VLAI
EPSS
VEX
Summary
A permissive cross-domain policy with untrusted domains vulnerability in Fortinet FortiADC 7.1.0 - 7.1.1, FortiDDoS-F 6.3.0 - 6.3.4 and 6.4.0 - 6.4.1 allow an unauthorized attacker to carry out privileged actions and retrieve sensitive information via crafted web requests.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-30 18:07 UTC
CWE
- CWE-942 - Improper access control
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Fortinet | FortiDDoS-F |
Affected:
6.4.0 , ≤ 6.4.1
(semver)
Affected: 6.3.0 , ≤ 6.3.4 (semver) |
|
| Fortinet | FortiADC |
Affected:
7.1.0 , ≤ 7.1.1
(semver)
|
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CVE-2023-2360 (GCVE-0-2023-2360)
Vulnerability from cvelistv5 – Published: 2023-04-28 11:10 – Updated: 2025-01-30 17:11
VLAI
EPSS
VEX
Summary
Sensitive information disclosure due to CORS misconfiguration. The following products are affected: Acronis Cyber Infrastructure (ACI) before build 5.2.0-135.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-30 17:11 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security-advisory.acronis.com/advisories/… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Acronis | Acronis Cyber Infrastructure |
Affected:
unspecified , < 5.2.0-135
(semver)
|
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CVE-2022-34366 (GCVE-0-2022-34366)
Vulnerability from cvelistv5 – Published: 2023-02-10 19:18 – Updated: 2025-03-24 18:38
VLAI
EPSS
VEX
Summary
Dell SupportAssist for Home PCs (version 3.11.2 and prior) contain Overly Permissive Cross-domain Whitelist vulnerability. An authenticated non-admin user could potentially exploit the issue and obtain sensitive information.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-24 14:44 UTC
CWE
- CWE-942 - Permissive Cross-domain Policy with Untrusted Domains
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/000204114 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | SupportAssist Client Consumer |
Affected:
0 , ≤ 3.11.2
(custom)
|
Date Public
2022-10-11 16:00
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CVE-2021-34435 (GCVE-0-2021-34435)
Vulnerability from cvelistv5 – Published: 2021-09-01 17:20 – Updated: 2024-08-04 00:12
VLAI
EPSS
VEX
Summary
In Eclipse Theia 0.3.9 to 1.8.1, the "mini-browser" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews a malicious file..
Severity
No CVSS data available.
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Eclipse Foundation | Eclipse Theia |
Affected:
0.3.9 , < unspecified
(custom)
Affected: unspecified , ≤ 1.8.1 (custom) |
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CVE-2021-27786 (GCVE-0-2021-27786)
Vulnerability from cvelistv5 – Published: 2022-06-07 17:50 – Updated: 2024-09-16 21:04
VLAI
EPSS
VEX
Title
HCL OneTest Server is vulnerable to Cross Origin Resource Sharing: Arbitrary Origin Trusted
Summary
Cross-origin resource sharing (CORS) enables browsers to perform cross domain requests in a controlled manner. This request has an Origin header that identifies the domain that is making the initial request and defines the protocol between a browser and server to see if the request is allowed. An attacker can take advantage of this and possibly carry out privileged actions and access sensitive information when the Access-Control-Allow-Credentials is enabled.
Severity
4.6 (Medium)
CWE
- CWE-942 - Permissive Cross-domain Policy with Untrusted Domains
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://support.hcltechsw.com/csm?id=kb_article&s… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HCL Software | HCL OneTest Server |
Affected:
10.0, 10.1, 10.2
|
Date Public
2022-06-07 00:00
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CVE-2020-36851 (GCVE-0-2020-36851)
Vulnerability from cvelistv5 – Published: 2025-09-25 14:45 – Updated: 2026-10-08 15:20
VLAI
EPSS
VEX
Title
Rob--W cors-anywhere Misconfigured CORS Proxy Allows SSRF
Summary
Rob--W cors-anywhere instances configured as an open proxy allow unauthenticated external users to induce the server to make HTTP requests to arbitrary targets (SSRF). Because the proxy forwards requests and headers, an attacker can reach internal-only endpoints and link-local metadata services, retrieve instance role credentials or other sensitive metadata, and interact with internal APIs and services that are not intended to be internet-facing. The vulnerability is exploitable by sending crafted requests to the proxy with the target resource encoded in the URL; many cors-anywhere deployments forward arbitrary methods and headers (including PUT), which can permit exploitation of IMDSv2 workflows as well as access to internal management APIs. Successful exploitation can result in theft of cloud credentials, unauthorized access to internal services, remote code execution or privilege escalation (depending on reachable backends), data exfiltration, and full compromise of cloud resources. Mitigation includes: restricting the proxy to trusted origins or authentication, whitelisting allowed target hosts, preventing access to link-local and internal IP ranges, removing support for unsafe HTTP methods/headers, enabling cloud provider mitigations, and deploying network-level protections.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-25 15:44 UTC
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/Rob--W/cors-anywhere/issues/152 | issue-tracking |
| https://github.com/Rob--W/cors-anywhere/issues/78 | issue-tracking |
| https://www.certik.com/resources/blog/cors-anywhe… | technical-description |
| https://www.vulncheck.com/advisories/rob-w-cors-a… | third-party-advisory |
| https://github.com/SocketDev/security-research/se… | vendor-advisory |
| https://github.com/Rob--W/cors-anywhere/issues/521 | issue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Rob--W / cors-anywhere | Rob--W / cors-anywhere |
Affected:
0 , ≤ 0.4.4
(semver)
|
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CVE-2019-14860 (GCVE-0-2019-14860)
Vulnerability from cvelistv5 – Published: 2019-11-08 14:45 – Updated: 2024-08-05 00:26
VLAI
EPSS
VEX
Summary
It was found that the Syndesis configuration for Cross-Origin Resource Sharing was set to allow all origins. An attacker could use this lack of protection to conduct phishing attacks and further access unauthorized information.
Severity
7.4 (High)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2019:3892 | vendor-advisoryx_refsource_REDHAT |
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"tags": [
"x_refsource_CONFIRM"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14860"
},
{
"name": "RHSA-2019:3892",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2019:3892"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2019-14860",
"datePublished": "2019-11-08T14:45:52.000Z",
"dateReserved": "2019-08-10T00:00:00.000Z",
"dateUpdated": "2024-08-05T00:26:39.101Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
GHSA-22CJ-GF6G-GPGC
Vulnerability from github – Published: 2025-08-18 15:30 – Updated: 2025-08-18 15:30
VLAI
Details
IBM Concert Software 1.0.0 through 1.1.0 uses cross-origin resource sharing (CORS) which could allow an attacker to carry out privileged actions as the domain name is not being limited to only trusted domains.
Severity
5.4 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-27909"
],
"database_specific": {
"cwe_ids": [
"CWE-697",
"CWE-942"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-18T14:15:28Z",
"severity": "MODERATE"
},
"details": "IBM Concert Software 1.0.0 through 1.1.0 uses cross-origin resource sharing (CORS) which could allow an attacker to carry out privileged actions as the domain name is not being limited to only trusted domains.",
"id": "GHSA-22cj-gf6g-gpgc",
"modified": "2025-08-18T15:30:32Z",
"published": "2025-08-18T15:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27909"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7242354"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-243R-JM6R-F6PP
Vulnerability from github – Published: 2026-08-17 12:32 – Updated: 2026-08-17 12:32
VLAI
Details
openssl_encrypt versions before 1.4.0 configure CORS with allow_origins set to wildcard and allow_credentials enabled to true. Attackers can create malicious websites that make authenticated cross-origin requests to the API on behalf of any user who visits them.
Severity
{
"affected": [],
"aliases": [
"CVE-2026-74881"
],
"database_specific": {
"cwe_ids": [
"CWE-942"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-17T11:16:42Z",
"severity": "HIGH"
},
"details": "openssl_encrypt versions before 1.4.0 configure CORS with allow_origins set to wildcard and allow_credentials enabled to true. Attackers can create malicious websites that make authenticated cross-origin requests to the API on behalf of any user who visits them.",
"id": "GHSA-243r-jm6r-f6pp",
"modified": "2026-08-17T12:32:23Z",
"published": "2026-08-17T12:32:23Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-c65f-x25w-62jv"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74881"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/openssl-encrypt-before-cors-misconfiguration-via-wildcard-origins"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/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"
}
]
}
Mitigation
Architecture and Design
Operation
Strategy: Attack Surface Reduction
Define a restrictive Content Security Policy [REF-1486] or cross-domain policy file.
Mitigation
Architecture and Design
Operation
Strategy: Attack Surface Reduction
Avoid using wildcards in the CSP / cross-domain policy file. Any domain matching the wildcard expression will be implicitly trusted, and can perform two-way interaction with the target server.
Mitigation
Architecture and Design
Operation
Strategy: Environment Hardening
For Flash, modify crossdomain.xml to use meta-policy options such as 'master-only' or 'none' to reduce the possibility of an attacker planting extraneous cross-domain policy files on a server.
No CAPEC attack patterns related to this CWE.