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CVE-2026-40326

Masa CMS CSRF in site bundle creation allows unauthorized site data export

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 7.2.10, 7.3.15, 7.4.10, 7.5.3
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

Masa CMS is a content management system forked from Mura CMS. In versions 7.5.2 and earlier, the createBundle method in `csettings.cfc` does not properly validate anti-CSRF tokens for site bundle creation requests. An attacker can craft a malicious webpage or link that, when visited by a logged-in administrator, triggers the silent creation of a comprehensive site bundle. This bundle is saved to a predictable, publicly accessible web directory. An unauthenticated attacker can then retrieve the bundle and obtain site content, user account data, password hashes, form submissions, email lists, plugins, and configuration data. This issue has been fixed in versions 7.2.10, 7.3.15, 7.4.10, and 7.5.3. As a workaround, remove unexpected bundle files from public directories, restrict access to the affected endpoint, and limit exposure of administrative sessions.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • MasaCMS MasaCMS

    fixed in 7.2.10; From 7.3.0 · fixed in 7.3.15; From 7.4.0 · fixed in 7.4.10; From 7.5.0 · fixed in 7.5.3

References 1

GitHub · MasaCMS/MasaCMS