CVE-2026-50229CWE-80

Apache Tomcat: XSS in number guess example

Medium · published June 29, 2026

CVSS v3.1
6.1
EPSS
4%
Percentile
90.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.04091 · 90.7th percentile
Weakness
CWE-80 · Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Published
2026-06-29T20:36Z
EPSS history
Timeline
  • 29 JUN 20:36Z
    Apache Tomcat: XSS in number guess example
    cvelistv5