CVE-2026-40326 Details
Description
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.
A cross-site request forgery (CSRF) vulnerability has been identified in Masa CMS versions through 7.5.2. The issue arises in the 'csettings.cfc' component, where the 'createBundle' method fails to properly validate anti-CSRF tokens for site bundle creation requests. This flaw allows an attacker to craft a malicious webpage or link that, when accessed by a logged-in administrator, silently generates a comprehensive site bundle. This bundle is saved to a predictable, publicly accessible directory. An unauthenticated attacker can then retrieve the bundle, gaining access to site content, user account data, password hashes, form submissions, email lists, plugins, and configuration data. The vulnerability has been patched in Masa CMS versions 7.2.10, 7.3.15, 7.4.10, and 7.5.3.
Users are advised to upgrade to Masa CMS versions 7.2.10, 7.3.15, 7.4.10, or 7.5.3. If an immediate upgrade is not possible, remove unexpected bundle files from public directories, restrict access to the 'csettings.cfc' endpoint, and ensure administrators log out of the CMS when not in use.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 6, 2026CISA-ADP
Assessed May 7, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/MasaCMS/MasaCMS/security/advisories/GHSA-622v-h7vf-w4gm | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-352 | Cross-Site Request Forgery (CSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Masa CMS | <= 7.5.2 (semver) |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 6, 2026 | New CVE Received | [email protected] |