XXE (XML External Entity) in Mustang (CVE-2025-66372)
Summary
Vulnerability in Mustang (CVE-2025-66372). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
Mustang before 2.16.3 allows exfiltrating files via XXE attacks.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A weakness called CVE-2025-66372 was discovered in Mustang.
Severity is Low (CVSS 2.8/10). Real-world exploitation is unlikely but a fix is still recommended.
What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "Mustang CVE-2025-66372".
CVE-2025-66372 (Mustang). Severity: Low / CVSSv3 2.8. Category: CWE-611.
Response plan:
- Check the vendor advisory for affected versions and the patched release.
- If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS).
- If no patch yet, mitigate via WAF rule, disabling the affected feature, etc.
- Monitor logs / SIEM for known IOC and PoC signatures of this CVE.
PoCs and fix commits: see the 'References' section, MITRE, and NVD.
A weakness (CVE-2025-66372) in Mustang. A serious software flaw has been identified.
Target versions of Mustang (see vendor advisory). If running in production, identify exposure immediately.
Severity: Low (CVSS 2.8/10). Real-world exploitation is unlikely but a fix is still recommended.
Update to the patched release as listed in the vendor advisory. (Typical mitigation pattern for CWE-611)
If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.
Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.
References
- web cve@mitre.org
- web cve@mitre.org
- web cve@mitre.org