A Cross Site Scripting (XSS) vulnerability in Concrete CMS from versions 9.2.0 to 9.2.2…
Priority MEDIUM 58CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
A Cross Site Scripting (XSS) vulnerability in Concrete CMS from versions 9.2.0 to 9.2.2 allows an attacker to execute arbitrary code via a crafted script to the Tags from Settings - Tags.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00629 50th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | concrete5/concrete5 (Packagist) | up to 9.2.1 | — | No fix listed | GHSA-6fm3-r6mf-j875 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- concrete5/concrete5 (Packagist) Vendor— Affected up to 9.2.1 Fixed in — No fix listed GHSA-6fm3-r6mf-j875
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:concretecms:concrete_cms:9.2.1:*:*:*:*:*:*:* | 9.2.1 | Vulnerable | Concrete CMS |
- cpe:2.3:a:concretecms:concrete_cms:9.2.1:*:*:*:*:*:*:* Versions 9.2.1 Vulnerable ·Concrete CMS
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-44762
- 2026-10-03 Alias added: GHSA-6fm3-r6mf-j875
- 2026-10-28 EPSS moved to the 50th–90th percentile
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-2023-26495 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
- TI-2021-05819 Server-side request forgery in https://github.com/concrete5/concrete5 CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-44762 · CVE Program
- CVE-2023-44762 · NVD
- FIRST EPSS
- GHSA-6fm3-r6mf-j875 · GitHub Advisory Database · CC BY 4.0
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