CVE-2026-81915

Concrete CMS below 9.5.3 does not perform an object-level authorization check when a Page Type was updated. The Types::submit() dashboard controller loaded and saved the Page Type identified by a user-supplied ptID without calling canEditPageType(), so a signed-in dashboard user permitted to edit one Page Type could modify the configuration of Page Types outside their assigned authorization boundary. The update_page_type token was validated but is action- and user-scoped rather than object-scoped, so it did not constrain which Page Type could be targeted. The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 5.1 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Andrew Gonzalez for reporting.

• CWE-639
• CWE-862

• https://documentation.concretecms.org/developers/introduction/version-history/953-release-notesBroken Link

Published

Sep 11, 2026

Last Modified

Sep 24, 2026

Status

Analyzed

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-8191A vulnerability was identified in Wavlink NU516U1 M16U1_V240…8.8
• CVE-2026-81910Concrete CMS 9 through 9.5.2 is vulnerable to Server-Side Te…6.5
• CVE-2026-81911Concrete CMS versions 9.0.0 to 9.5.2 is vulnerable to Stored…5.4
• CVE-2026-81912Concrete CMS before 9.5.3 is vulnerable to Cross-Site Reques…5.7
• CVE-2026-81913Concrete CMS versions 9.5.0 through 9.5.2 are vulnerable to …6.1
• CVE-2026-81914Apache Airflow's Google provider built Google Drive search e…4.3
• CVE-2026-81916Concrete CMS before 9.5.3 evaluated the authorization check …4.3
• CVE-2026-81917Concrete CMS below 9.5.3 does not apply HTML output escaping…5.4
• CVE-2026-81918Concrete CMS below 9.5.3 is vulnerable to Stored XSS via the…4.8
• CVE-2026-81919Concrete CMS below 9.5.3 did not validate an anti-CSRF token…4.3
• CVE-2026-8192A security flaw has been discovered in Wavlink NU516U1 M16U1…8.8
• CVE-2026-81920Concrete CMS below 9.5.3 was vulnerable to Cross-Site Reques…4.3