CVE-2025-12799
MEDIUMCVSS 6.5/10EPSS 0.25%
Last modified
CVE-2025-12799 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting (XSS) attack. EPSS estimates a 0.25% chance of exploitation in the next 30 days.
Description
A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting (XSS) attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1.7.GA | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8 | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | All versions |
| Red Hat | Red Hat Single Sign-On 7 | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2025-12799?
A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting (XSS) attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling.
How severe is CVE-2025-12799?
CVE-2025-12799 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.
How do I fix CVE-2025-12799?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2025-12799?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST