CVE-2026-40309— Masa CMS CSRF in trash management allows unauthorized permanent deletion of deleted content
Possible ATT&CK Techniques 3AI
T1059 · Command and Scripting Interpreter T1068 · Exploitation for Privilege Escalation T1491.001 · Internal DefacementGet alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-40309
Vulnerability Information
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Vulnerability Title
Masa CMS CSRF in trash management allows unauthorized permanent deletion of deleted content
Source: CVE Program / CVE List V5
Vulnerability Description
Masa CMS is a content management system forked from Mura CMS. In versions 7.5.2 and earlier, the cTrash.empty function does not validate anti-CSRF tokens for trash management requests. An attacker can induce a logged-in administrator to submit a forged request that empties the trash and permanently deletes all deleted content. This can cause irreversible data loss and disrupt recovery of content intended for restoration. This issue has been fixed in versions 7.2.10, 7.3.15, 7.4.10, and 7.5.3. As a workaround, restrict access to the administrative backend, use browser isolation for administrative sessions, and maintain current database backups to recover from unauthorized deletion.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Masa CMS 跨站请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Masa CMS是Masa CMS组织的一个数字体验平台。 Masa CMS 7.5.2及之前版本存在跨站请求伪造漏洞，该漏洞源于cTrash.empty函数未验证反CSRF令牌，可能导致攻击者诱导管理员提交伪造请求清空回收站并永久删除所有已删除内容。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-40309
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Vendor Advisories for CVE-2026-40309 (1)
Same Patch Batch · MasaCMS · 2026-05-06 · 5 CVEs total
| CVE-2026-40325 | Masa CMS CSRF in content restoration allows unauthorized restoration of deleted content | |
| CVE-2026-40332 | Masa CMS open redirect via improper handling of scheme-relative URLs | |
| CVE-2026-40326 | Masa CMS CSRF in site bundle creation allows unauthorized site data export | |
| CVE-2026-40174 | Masa CMS CSRF in user address management allows unauthorized address changes |
IV. Related Vulnerabilities
Same product: MasaCMS
- CVE-2026-40332
Masa CMS open redirect via improper handling of scheme-relat - CVE-2026-40326
Masa CMS CSRF in site bundle creation allows unauthorized si - CVE-2026-40325
Masa CMS CSRF in content restoration allows unauthorized res - CVE-2026-40174
Masa CMS CSRF in user address management allows unauthorized - CVE-2026-40331
Masa CMS unauthenticated SQL injection via altTable paramete
Same vendor: MasaCMS
- CVE-2026-40332
Masa CMS open redirect via improper handling of scheme-relat - CVE-2026-40326
Masa CMS CSRF in site bundle creation allows unauthorized si - CVE-2026-40325
Masa CMS CSRF in content restoration allows unauthorized res - CVE-2026-40174
Masa CMS CSRF in user address management allows unauthorized - CVE-2026-40331
Masa CMS unauthenticated SQL injection via altTable paramete
V. Comments for CVE-2026-40309
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