Apache Tomcat: XSS in number guess example
28Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendcvss 6.1epss 4.1%
from disclosure to weapon9 days
Published on NVDJun 29
1st PoC+9d
exploitation probability
4.1%top 10% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in the number guess example for Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached end of support may also be affected.
Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected products
Apache Software Foundation · Apache Tomcatpublic PoCs found — 1
githubgithub.com/zero-trace7/CVE-2026-50229★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.