Vulnerability · Published Jul 7, 2026 · Assigned by redhat
CVE-2025-12799Jastow: jastow cross-site scripting attack due to unsanitized uri
Medium 6.5
In plain English
A medium-severity cross-site scripting in Red Hat JBoss Enterprise Application Platform 8.1.7.GA from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 64.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
References
- RHSA-2026:36342 vendor-advisory, x_refsource_REDHAT
- RHSA-2026:36343 vendor-advisory, x_refsource_REDHAT
- RHSA-2026:36344 vendor-advisory, x_refsource_REDHAT
- RHSA-2026:36345 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2025-12799 vdb-entry, x_refsource_REDHAT
- RHBZ#2413071 issue-tracking, x_refsource_REDHAT