Concrete CMS stored XSS vulnerability in the "Top Navigator Bar" block
Impact
Concrete CMS versions 9.0.0 through 9.3.3 are affected by a stored XSS vulnerability in the "Top Navigator Bar" block. Since the "Top Navigator Bar" output was not sufficiently sanitized, a rogue administrator could add a malicious payload that could be executed when targeted users visited the home page. This does not affect versions below 9.0.0 since they do not have the Top Navigator Bar Block. Thanks, Chu Quoc Khanh for reporting.
Source excerpt · OSVAffected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
| Affected range | Recorded fix |
|---|---|
| From 9.0.0 before 9.3.3Ecosystem versions | 9.3.3 |
Version evidence: OSV · GHSA-998c-q8hh-h8gv
View original version evidence (21 explicit versions)
Original source description
Concrete CMS versions 9.0.0 through 9.3.3 are affected by a stored XSS vulnerability in the "Top Navigator Bar" block. Since the "Top Navigator Bar" output was not sufficiently sanitized, a rogue administrator could add a malicious payload that could be executed when targeted users visited the home page. This does not affect versions below 9.0.0 since they do not have the Top Navigator Bar Block. Thanks, Chu Quoc Khanh for reporting.
References
- Security advisory nvd.nist.gov/vuln/detail/CVE-2024-8660
- Patch github.com/concretecms/concretecms/pull/12128
- Patch github.com/concretecms/concretecms/commit/f5a01c88fb2630db96e58dcd7f52ea41e516d4e9
- Release notes documentation.concretecms.org/9-x/developers/introduction/version-history/934-release-notes
- Source reference github.com/concretecms/concretecms