https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-06T20:05:15.852845+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-274203 EUVD-2026-274203 2026-10-06T20:05:15.904403+00:00 EUVD-2026-274203 https://cve.radiocsirt.org/vuln/fkie_cve-2026-3452 fkie_cve-2026-3452 2026-10-06T20:05:15.904444+00:00

Concrete CMS below version 9.4.8 is vulnerable to Remote Code Execution by stored PHP object injection into the Express Entry List block via the columns parameter. An authenticated administrator can store attacker-controlled serialized data in block configuration fields that are later passed to unserialize() without class restrictions or integrity checks. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 8.9 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H. Thanks YJK ( @YJK0805 https://hackerone.com/yjk0805 ) of ZUSO ART https://zuso.ai/  for reporting.

 https://cve.radiocsirt.org/vuln/ghsa-gj26-w59c-29mf GHSA-gj26-w59c-29mf — Concrete CMS vulnerable to Remote Code Execution by stored PHP object injection 2026-10-06T20:05:15.904483+00:00

Affected: Packagist: concrete5/concrete5

Concrete CMS below version 9.4.8 is vulnerable to Remote Code Execution by stored PHP object injection into the Express Entry List block via the columns parameter. An authenticated administrator can store attacker-controlled serialized data in block configuration fields that are later passed to unserialize() without class restrictions or integrity checks.

The Concrete CMS security team thanks YJK ( @YJK0805 https://hackerone.com/yjk0805 ) of ZUSO ART https://zuso.ai/  for reporting.