PT-2026-42564 · Unknown · Concrete Cms

0X4C616E · Published 2026-05-21 · Updated 2026-05-22 · CVE-2026-8327

Positive Technologies (AI Summary)

CVSS v4.0

5.3

Medium

Base vector

AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.0

Description The user-profile edit controller passes the entire raw POST array to the UserInfo::update() function without field whitelisting. This allows registered users to change passwords without providing the current password for reauthorization. Additionally, this flaw enables users to disable per-user-IP-pinning in the session validator, a security feature designed to detect session hijacking.

Recommendations Update to version 9.5.0 or later.

Fix

Improper Privilege Management

Weakness Enumeration

CWE-915

CWE-269

CWE-620

Related Identifiers

CVE-2026-8327

Affected Products

Concrete Cms

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-8327 · Security Note
• https://twitter.com/CVEnew/status/2057783214014333102 · Twitter Post
• https://twitter.com/infoflowcloud/status/2057785072535646654 · Twitter Post
• https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes · Note
• https://t.me/CVEtracker/54561 · Telegram Post