CVE-2026-8417
- Source
- https://cve.org/CVERecord?id=CVE-2026-8417
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-8417.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-8417
- Aliases
- Published
- 2026-05-21T20:19:42.643Z
- Modified
- 2026-07-15T01:49:07.316260152Z
- Severity
-
- 7.5 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Concrete CMS 9.5.0 and below is vulnerable to CSRF in do_update() in the package update controller
- Details
-
Concrete CMS 9.5.0 and below does not validate a CSRF token before processing requests to /dashboard/extend/update/doupdate/<pkgHandle>. The doupdate() method in concrete/controllers/single_page/dashboard/extend/update.php checks only canInstallPackages() before executing upgradeCoreData() and upgrade() on the named package's controller. Because the endpoint is a state-changing GET route with no token enforcement, an attacker can force an authenticated administrator to trigger a package upgrade via a single cross-site navigation.In order to be vulnerable, the victim must be passing canInstallPackages() and and a target package must already be already installed. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 7.5 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks https://github.com/maru1009 for reporting.
- Database specific
{ "cna_assigner": "ConcreteCMS", "cwe_ids": [ "CWE-352" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8417.json" }- References
Affected packages
Git / github.com/concretecms/concretecms
Affected ranges
- Type
- GIT
- Repo
- https://github.com/concretecms/concretecms
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "source": [ "AFFECTED_FIELD", "CPE_RANGE" ], "cpe": "cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "5.0" }, { "last_affected": "9.5.0" }, { "introduced": "0" }, { "fixed": "9.5.1" } ] }