Concrete CMS Stored XSS in Board instances
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
Concrete CMS versions 9.0.0 through 9.3.2 are affected by a stored XSS vulnerability in Board instances. A rogue administrator could inject malicious code. The Concrete CMS security team gave this vulnerability a CVSS 4.0 Score of 4.6 with vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N. Versions below 9 are not affected. Thanks, m3dium for reporting. (CNA updated AC score to L based on CVSS 4.0 documentation)
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | concrete5/concrete5 (Packagist) | 9.0.0RC1 to before 9.3.3 | 9.3.3 | Patch available | GHSA-c47w-9mcf-w972 |
- concrete5/concrete5 (Packagist) Vendor— Affected 9.0.0RC1 to before 9.3.3 Fixed in 9.3.3 Patch available GHSA-c47w-9mcf-w972
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:* | 9.0.0 to before 9.3.3 | Vulnerable | Concrete CMS |
- cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:* Versions 9.0.0 to before 9.3.3 Vulnerable ·Concrete CMS
Remediation
- Fix · GHSA-c47w-9mcf-w972 concrete5/concrete5 (Packagist) Fixed in 9.3.3 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-7512
- 2026-10-03 Alias added: GHSA-c47w-9mcf-w972
References
More Concrete Cms vulnerabilities
- TI-2026-23602 ConcreteCMS v9.4.7 contains a Denial of Service (DoS) vulnerability in the File Manager… CVSS 3.1MEDIUM 6.5
- TI-2023-23992 A Cross Site Scripting (XSS) vulnerability in Concrete CMS from versions 9.2.0 to 9.2.2… CVSS 3.1MEDIUM 5.4
- TI-2023-26495 Concrete CMS before 8.5.13 and 9.x before 9.2.2 allows unauthorized access because… CVSS 3.1CRITICAL 9.8
- TI-2026-14907 Missing authorization in Concrete CMS CVSS 4.0HIGH 8.7
- TI-2022-06200 Cleartext transmission of sensitive information in https://github.com/concrete5/concrete5 CVSS 3.1CRITICAL 9.8
- TI-2021-17294 An issue was discovered in Concrete CMS through 8.5.5. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2024-7512 · CVE Program
- CVE-2024-7512 · NVD
- FIRST EPSS
- GHSA-c47w-9mcf-w972 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences