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2 vulnerabilities found for Pluck CMS by pluck-cms
CVE-2026-70376 (GCVE-0-2026-70376)
Vulnerability from cvelistv5 – Published: 2026-08-05 06:58 – Updated: 2026-08-05 06:58
VLAI
EPSS
VEX
Title
Pluck CMS: CSRF via Spoofable Missing-Referer Bypass Leads to Stored XSS and RCE
Summary
Pluck CMS's admin panel relies solely on a Referer-header comparison (requestedByTheSameDomain() in data/inc/functions.admin.php, gating every admin.php action) for CSRF protection, with no per-request anti-CSRF token anywhere in the admin area. When a request carries no Referer/Host information, the function's elseif branch returns true, treating the request as same-origin. Because a cross-site attacker page can suppress the Referer header (e.g. via <meta name=referrer content=no-referrer>), it can force an authenticated administrator's browser to submit forged admin actions with no valid Referer, including creating pages with raw HTML (stored XSS via the rendered page) and installing PHP modules/themes (remote code execution).
Severity
9.6 (Critical)
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pluck-cms/pluck |
Impacted products
Credits
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "Pluck CMS",
"programFiles": [
"admin.php",
"data/inc/functions.admin.php"
],
"vendor": "pluck-cms",
"versions": [
{
"lessThan": "4.7.21",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "ILHOMJON RUSTAMOV"
}
],
"descriptions": [
{
"lang": "en",
"value": "Pluck CMS\u0027s admin panel relies solely on a Referer-header comparison (requestedByTheSameDomain() in data/inc/functions.admin.php, gating every admin.php action) for CSRF protection, with no per-request anti-CSRF token anywhere in the admin area. When a request carries no Referer/Host information, the function\u0027s elseif branch returns true, treating the request as same-origin. Because a cross-site attacker page can suppress the Referer header (e.g. via \u003cmeta name=referrer content=no-referrer\u003e), it can force an authenticated administrator\u0027s browser to submit forged admin actions with no valid Referer, including creating pages with raw HTML (stored XSS via the rendered page) and installing PHP modules/themes (remote code execution)."
}
],
"metrics": [
{
"other": {
"content": {
"value": "CRITICAL"
},
"type": "CVSS_3.1_severity"
}
},
{
"cvssV3_1": {
"baseScore": 9.6,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-352",
"description": "CWE-352 Cross-Site Request Forgery (CSRF)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T06:58:44.471Z",
"orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
"shortName": "TuranSec"
},
"references": [
{
"url": "https://github.com/pluck-cms/pluck"
}
],
"title": "Pluck CMS: CSRF via Spoofable Missing-Referer Bypass Leads to Stored XSS and RCE"
}
},
"cveMetadata": {
"assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
"assignerShortName": "TuranSec",
"cveId": "CVE-2026-70376",
"datePublished": "2026-08-05T06:58:44.471Z",
"dateReserved": "2026-08-04T07:13:07.993Z",
"dateUpdated": "2026-08-05T06:58:44.471Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54416 (GCVE-0-2026-54416)
Vulnerability from cvelistv5 – Published: 2026-08-05 06:58 – Updated: 2026-08-05 06:58
VLAI
EPSS
VEX
Title
Pluck CMS: Unrestricted File Upload via Missing .php8 Extension in Upload Blacklist
Summary
Pluck CMS through 4.7.21 restricts dangerous file uploads in its admin file-management feature using a fixed blacklist in data/inc/files.php ('.php','php3','php4','php5','php6','php7','phtml','.phtm','.pht','.ph3','.ph4','.ph5','.asp','.cgi','.phar'), checked against the last 4-5 characters of the filename. The blacklist omits the '.php8' extension. An authenticated administrator can upload a file named e.g. shell.php8, which is stored unmodified and, on servers running PHP 8.x, is executed as PHP by the web server, resulting in remote code execution.
Severity
7.2 (High)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pluck-cms/pluck |
Impacted products
Credits
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "Pluck CMS",
"programFiles": [
"data/inc/files.php"
],
"vendor": "pluck-cms",
"versions": [
{
"lessThanOrEqual": "4.7.21",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Alijonov Alisher"
}
],
"descriptions": [
{
"lang": "en",
"value": "Pluck CMS through 4.7.21 restricts dangerous file uploads in its admin file-management feature using a fixed blacklist in data/inc/files.php (\u0027.php\u0027,\u0027php3\u0027,\u0027php4\u0027,\u0027php5\u0027,\u0027php6\u0027,\u0027php7\u0027,\u0027phtml\u0027,\u0027.phtm\u0027,\u0027.pht\u0027,\u0027.ph3\u0027,\u0027.ph4\u0027,\u0027.ph5\u0027,\u0027.asp\u0027,\u0027.cgi\u0027,\u0027.phar\u0027), checked against the last 4-5 characters of the filename. The blacklist omits the \u0027.php8\u0027 extension. An authenticated administrator can upload a file named e.g. shell.php8, which is stored unmodified and, on servers running PHP 8.x, is executed as PHP by the web server, resulting in remote code execution."
}
],
"metrics": [
{
"other": {
"content": {
"value": "HIGH"
},
"type": "CVSS_3.1_severity"
}
},
{
"cvssV3_1": {
"baseScore": 7.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-434",
"description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T06:58:23.512Z",
"orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
"shortName": "TuranSec"
},
"references": [
{
"url": "https://github.com/pluck-cms/pluck"
}
],
"title": "Pluck CMS: Unrestricted File Upload via Missing .php8 Extension in Upload Blacklist"
}
},
"cveMetadata": {
"assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
"assignerShortName": "TuranSec",
"cveId": "CVE-2026-54416",
"datePublished": "2026-08-05T06:58:23.512Z",
"dateReserved": "2026-06-13T16:39:46.122Z",
"dateUpdated": "2026-08-05T06:58:23.512Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}