medium3.5
CVE-2025-2967
ConcreteCMS Cross-Site Scripting (XSS) via HTML Block Text Field
Impact
A vulnerability was found in ConcreteCMS up to 9.3.9. It has been classified as problematic. This affects the function Save of the component HTML Block Handler. The manipulation of the argument content leads to HTML injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | concrete5/concrete5 | <= 9.3.9 | none recorded |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-xfqf-5rhg-5c73
- https://nvd.nist.gov/vuln/detail/CVE-2025-2967
- https://github.com/yaowenxiao721/Poc/blob/main/Concretecms/Concretecms-poc5.md
- https://vuldb.com/?ctiid.302019
- https://vuldb.com/?id.302019
- https://vuldb.com/?submit.522417