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2 vulnerabilities found for hashbrown-cms by HashBrownCMS
CVE-2026-70375 (GCVE-0-2026-70375)
Vulnerability from cvelistv5 – Published: 2026-08-05 05:46 – Updated: 2026-08-05 05:46
VLAI
EPSS
VEX
Title
HashBrown CMS: OS Command Injection via Git Deployer Branch Field
Summary
HashBrown CMS through 1.4.6 contains an OS Command Injection vulnerability (CWE-78) in the Git deployer component. GitDeployer.pullRepo() in src/Server/Entity/Deployer/GitDeployer.js executes AppService.exec(`git checkout ${this.branch || 'master'}`), interpolating the configured branch value directly into a shell command with no escaping. GitDeployer.validate() only rejects a single-quote character in the repo, branch, username, and password fields; shell metacharacters such as ';', '&&', '|', backticks, and '$()' are not filtered. A user able to configure a project's Git deployer settings can set a malicious branch value (e.g. 'master;<command>#') that executes automatically on every subsequent deployer operation (media upload, content save, etc.), since pullRepo() is invoked unconditionally at the start of each such operation. This is related to CVE-2020-6948, which addressed single-quote escaping of the repo, username, and password fields in the same file's git clone invocation; the branch field used in the unquoted git checkout command was not covered by that fix and remains injectable.
Severity
No CVSS data available.
CWE
- CWE-78 - OS Command Injection
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HashBrownCMS | hashbrown-cms |
Affected:
0 , ≤ 1.4.6
(semver)
|
Credits
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "hashbrown-cms",
"programFiles": [
"src/Server/Entity/Deployer/GitDeployer.js"
],
"repo": "https://github.com/HashBrownCMS/hashbrown-cms",
"vendor": "HashBrownCMS",
"versions": [
{
"lessThanOrEqual": "1.4.6",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Alijonov Alisher"
}
],
"descriptions": [
{
"lang": "en",
"value": "HashBrown CMS through 1.4.6 contains an OS Command Injection vulnerability (CWE-78) in the Git deployer component. GitDeployer.pullRepo() in src/Server/Entity/Deployer/GitDeployer.js executes AppService.exec(`git checkout ${this.branch || \u0027master\u0027}`), interpolating the configured branch value directly into a shell command with no escaping. GitDeployer.validate() only rejects a single-quote character in the repo, branch, username, and password fields; shell metacharacters such as \u0027;\u0027, \u0027\u0026\u0026\u0027, \u0027|\u0027, backticks, and \u0027$()\u0027 are not filtered. A user able to configure a project\u0027s Git deployer settings can set a malicious branch value (e.g. \u0027master;\u003ccommand\u003e#\u0027) that executes automatically on every subsequent deployer operation (media upload, content save, etc.), since pullRepo() is invoked unconditionally at the start of each such operation. This is related to CVE-2020-6948, which addressed single-quote escaping of the repo, username, and password fields in the same file\u0027s git clone invocation; the branch field used in the unquoted git checkout command was not covered by that fix and remains injectable."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-78",
"description": "CWE-78 OS Command Injection",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T05:46:26.004Z",
"orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
"shortName": "TuranSec"
},
"references": [
{
"url": "https://github.com/HashBrownCMS/hashbrown-cms"
},
{
"url": "https://cve.turansec.uz/advisories/TRN-B571F773"
}
],
"title": "HashBrown CMS: OS Command Injection via Git Deployer Branch Field"
}
},
"cveMetadata": {
"assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
"assignerShortName": "TuranSec",
"cveId": "CVE-2026-70375",
"datePublished": "2026-08-05T05:46:26.004Z",
"dateReserved": "2026-08-04T07:13:07.993Z",
"dateUpdated": "2026-08-05T05:46:26.004Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-70374 (GCVE-0-2026-70374)
Vulnerability from cvelistv5 – Published: 2026-08-05 05:46 – Updated: 2026-08-05 05:46
VLAI
EPSS
VEX
Title
HashBrown CMS: OS Command Injection in Media Upload Thumbnail Generation
Summary
HashBrown CMS through 1.4.6 contains an OS Command Injection vulnerability (CWE-78) in the media upload thumbnail generation routine. Media.generateThumbnail() in src/Server/Entity/Resource/Media.js builds a temporary file path as 'thumbnail' + Path.extname(filename) and passes it, unescaped, into a shell command executed via AppService.exec() ('convert ' + tempFile + ...). The MIME-type filter in getMIMEType() (src/Common/utilities.js) truncates the extracted extension at the first '?' character, while Path.extname() does not, allowing a filename such as 'x.jpg?$(command)' to pass the image-type check while still injecting a shell command substitution into the exec() call. An authenticated user holding the media resource scope can achieve arbitrary OS command execution in the context of the Node.js process via POST /api/{project}/{environment}/media/new.
Severity
No CVSS data available.
CWE
- CWE-78 - OS Command Injection
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HashBrownCMS | hashbrown-cms |
Affected:
0 , ≤ 1.4.6
(semver)
|
Credits
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "hashbrown-cms",
"programFiles": [
"src/Server/Entity/Resource/Media.js",
"src/Common/utilities.js"
],
"repo": "https://github.com/HashBrownCMS/hashbrown-cms",
"vendor": "HashBrownCMS",
"versions": [
{
"lessThanOrEqual": "1.4.6",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Alijonov Alisher"
}
],
"descriptions": [
{
"lang": "en",
"value": "HashBrown CMS through 1.4.6 contains an OS Command Injection vulnerability (CWE-78) in the media upload thumbnail generation routine. Media.generateThumbnail() in src/Server/Entity/Resource/Media.js builds a temporary file path as \u0027thumbnail\u0027 + Path.extname(filename) and passes it, unescaped, into a shell command executed via AppService.exec() (\u0027convert \u0027 + tempFile + ...). The MIME-type filter in getMIMEType() (src/Common/utilities.js) truncates the extracted extension at the first \u0027?\u0027 character, while Path.extname() does not, allowing a filename such as \u0027x.jpg?$(command)\u0027 to pass the image-type check while still injecting a shell command substitution into the exec() call. An authenticated user holding the media resource scope can achieve arbitrary OS command execution in the context of the Node.js process via POST /api/{project}/{environment}/media/new."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-78",
"description": "CWE-78 OS Command Injection",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T05:46:19.284Z",
"orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
"shortName": "TuranSec"
},
"references": [
{
"url": "https://github.com/HashBrownCMS/hashbrown-cms"
},
{
"url": "https://cve.turansec.uz/advisories/TRN-11FC0D88"
}
],
"title": "HashBrown CMS: OS Command Injection in Media Upload Thumbnail Generation"
}
},
"cveMetadata": {
"assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
"assignerShortName": "TuranSec",
"cveId": "CVE-2026-70374",
"datePublished": "2026-08-05T05:46:19.284Z",
"dateReserved": "2026-08-04T07:13:07.993Z",
"dateUpdated": "2026-08-05T05:46:19.284Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}