An unauthenticated reflected cross-site scripting vulnerability in the query handling of…
Priority MEDIUM 64CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
An unauthenticated reflected cross-site scripting vulnerability in the query handling of CMSimpleXH allows remote attackers to inject and execute arbitrary JavaScript in a victim's browser via a crafted request (e.g., a maliciously crafted POST login). Successful exploitation may lead to theft of session cookies, credential disclosure, or other client-side impacts.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00359 29th 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 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cmsimple-xh:cmsimple_xh:1.8.0:-:*:*:*:*:*:* | 1.8.0 | Vulnerable | Cmsimple-Xh |
- cpe:2.3:a:cmsimple-xh:cmsimple_xh:1.8.0:-:*:*:*:*:*:* Versions 1.8.0 Vulnerable ·Cmsimple-Xh
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-63588
- 2026-10-03 Alias added: GHSA-gj82-c7f3-xr2m
References
More Cmsimple-Xh Cmsimple Xh vulnerabilities
- TI-2021-22353 CMSimple_XH 1.7.4 Authenticated Remote Code Execution via Content Editing CVSS 4.0HIGH 8.6
- TI-2025-39375 A reflected XSS vulnerability exists in CMSimple_XH 1.8's index.php router when… CVSS 3.1HIGH 7.1
- TI-2024-22786 CMSimple_XH 1.7.6 allows XSS by uploading a crafted SVG document. CVSS 3.1MEDIUM 6.1
- TI-2021-18881 CMSimple_XH 1.7.4 is affected by a remote code execution (RCE) vulnerability. CVSS 3.1CRITICAL 10.0
Sources
- CVE-2025-63588 · CVE Program
- CVE-2025-63588 · NVD
- FIRST EPSS
- GHSA-gj82-c7f3-xr2m · 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