CVE-2026-8340

Concrete CMS 9.5.0 and below is vulnerable to CSRF via Backend\File::approveVersion. Victim with editfilecontents permission is CSRF'd into publishing an attacker-chosen previously-uploaded version downgrade to an older version of a file, or activation of a co-editor's unpublished version. The...

EUVD-2026-31441

Concrete CMS 9.5.0 and below is vulnerable to CSRF via Backend\File::approveVersion. Victim with editfilecontents permission is CSRF'd into publishing an attacker-chosen previously-uploaded version downgrade to an older version of a file, or activation of a co-editor's unpublished version. The...

CVE-2026-8340

Concrete CMS 9.5.0 and below is vulnerable to CSRF via Backend\File::approveVersion. Victim with editfilecontents permission is CSRF'd into publishing an attacker-chosen previously-uploaded version downgrade to an older version of a file, or activation of a co-editor's unpublished version. The...

CVE-2026-8340 Concrete CMS 9.5.0 and below is vulnerable to CSRF via Backend\File::approveVersion

Concrete CMS 9.5.0 and below is vulnerable to CSRF via Backend\File::approveVersion. Victim with editfilecontents permission is CSRF'd into publishing an attacker-chosen previously-uploaded version downgrade to an older version of a file, or activation of a co-editor's unpublished version. The...

CVE-2026-8340 Concrete CMS 9.5.0 and below is vulnerable to CSRF via Backend\File::approveVersion

Concrete CMS 9.5.0 and below is vulnerable to CSRF via Backend\File::approveVersion. Victim with editfilecontents permission is CSRF'd into publishing an attacker-chosen previously-uploaded version downgrade to an older version of a file, or activation of a co-editor's unpublished version. The...

EUVD-2026-31363

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/backend/file approveVersion. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N...

EUVD-2026-31369

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/backend/file star. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Dror...

PT-2026-42772

Concrete CMS 9.5.0 and below is vulnerable to CSRF via BackendFile::approveVersion. Victim with edit file contents permission is CSRF'd into publishing an attacker-chosen previously-uploaded version downgrade to an older version of a file, or activation of a co-editor's unpublished version. The...

CVE-2026-8432

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/backend/file star. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Dror...

CVE-2026-8433

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/backend/file rescan. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan...

CVE-2026-8416

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/backend/file addFavoriteFolder$id. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N...

CVE-2026-8416

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/backend/file addFavoriteFolder$id. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N...

CVE-2026-8416 Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file addFavoriteFolder($id)

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/backend/file addFavoriteFolder$id. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N...

CVE-2026-8416

Concrete CMS versions 9.0.0 through 9.4.x are vulnerable to Cross Site Request Forgery (CSRF) in the concrete/controllers/backend/file addFavoriteFolder($id) function. The issue stems from CSRF protection gaps in that endpoint. Public disclosures in multiple sources (including PT-2026-42572) conf...

CVE-2026-8427 Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file removeFavoriteFolder($id)

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/backend/file removeFavoriteFolder$id. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N...

CVE-2026-8427 Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file removeFavoriteFolder($id)

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/backend/file removeFavoriteFolder$id. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N...

CVE-2026-8427

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/backend/file removeFavoriteFolder$id. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N...

CVE-2026-8432 Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file star()

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/backend/file star. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Dror...

CVE-2026-8432 Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file star()

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/backend/file star. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Dror...

CVE-2026-8432

Concrete CMS versions prior to 9.5.0 are affected by a Cross-Site Request Forgery (CSRF) at the endpoint concrete/controllers/backend/file star(), due to a flaw in the star() function. Affected range includes 9.0.0 through 9.4.x. The issue is exploited by convincing an authenticated user to perfo...