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Posted to announce@apache.org by "David M. Johnson" <sn...@apache.org> on 2026/09/25 20:17:00 UTC

CVE-2026-91206: Apache Roller: Reflected XSS in the optional LDAP comment authenticator

Severity: Moderate 
    CVSS 3.1: 6.1 (medium) CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected versions:

- Apache Roller 6.1.5

Description:

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Apache Roller 6.1.5 allows a remote attacker to perform reflected cross-site scripting through the optional LDAP comment authenticator, which writes request parameter values into its HTML form without escaping. This affects only sites configured to use LdapCommentAuthenticator, and a victim whose session has already loaded the authenticator form must follow a crafted link. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which escapes the reflected values.

Credit:

姬珏 (CyberLeo) (finder)

References:

https://github.com/apache/roller/pull/191
https://roller.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-91206