Permanent trash deletion via forged administrator request
Published May 6, 2026 · Updated May 6, 2026
Cross-site request forgery in Masa CMS allows remote attackers to permanently empty the trash through a logged-in administrator's browser. The cTrash.empty function accepts trash-management requests without validating an anti-CSRF token, so a cross-site request invokes bulk deletion. Exploitation requires a logged-in administrator to open an attacker-controlled page or link; all trashed content is then irreversibly deleted without confirmation or consent.
Summary
What happened
Cross-site request forgery in Masa CMS allows remote attackers to permanently empty the trash through a logged-in administrator's browser. The cTrash.empty function accepts trash-management requests without validating an anti-CSRF token, so a cross-site request invokes bulk deletion. Exploitation requires a logged-in administrator to open an attacker-controlled page or link; all trashed content is then irreversibly deleted without confirmation or consent.
The record
- CVE
- CVE-2026-40309
- Published
- May 6, 2026
- Updated
- May 6, 2026
- Vendor
- Masa CMS
- Product
- Masa CMS
- Classifications
- CWE-352, T1485
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 6, 2026CVE publishedPublication date reported by the CVE source.
- May 6, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 7.2.10
- Affected versionversion=>= 7.3.0, < 7.3.15
- Affected versionversion=>= 7.4.0, < 7.4.10
- Affected versionversion=>= 7.5.0, < 7.5.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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