---
id: CVE-2026-91206
title: >-
  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 …
summary: >-
  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 …
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: Apache Software Foundation
product: Apache Roller
affected:
  - apache_roller 6.1.5
published: '2026-09-28'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T09:17:07.907'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-91206'
references:
  - url: 'https://github.com/apache/roller/pull/191'
    label: security@apache.org
  - url: 'https://lists.apache.org/thread/tljwqdttq8tgg6hr8sxlcnwpxl6pch4s'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/09/25/24'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-28T08:05:44.644Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.