{"id":"CVE-2026-91204","published":"2026-09-28T08:16:42.887","lastModified":"2026-09-28T14:29:44.860","description":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Apache Roller 6.1.5 allows an anonymous remote attacker to store a comment containing a javascript: URI link that survives HTML comment formatting and can execute script in the browser of a visitor who clicks it. This affects only sites that enable HTML in comments (users.comments.htmlenabled=true) together with the HTMLSubset comment formatter; comment moderation, where enabled, delays publication. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which restricts restored links to http, https and mailto URIs.","cvssScore":6.1,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/apache/roller/pull/190","tags":[]},{"url":"https://lists.apache.org/thread/4qzp8m0438056l5t6m6719ob79gx72lz","tags":[]},{"url":"http://www.openwall.com/lists/oss-security/2026/09/25/23","tags":[]}],"exploitRefs":[{"url":"https://github.com/apache/roller/pull/190","tags":[]}],"hasPoc":true,"ai":null}