# CVE-2026-86507: Apache Roller stored XSS in comment author URL

Source: https://junglewise.ai/threats/cve-2026-86507-improper-neutralization-of-input-in-apache-roller-6-1-5-allows-an  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-28. Updated: 2026-09-28  
License: CC BY 4.0 with a link back

CVE-2026-86507 · Severity: medium · CVSS 6.1 · Published 2026-09-28

Apache Roller is a weblog publishing platform that allows site visitors to submit comments. A vulnerability in the comment management interface allows attackers to inject malicious scripts into comment author URLs that execute when a weblog moderator reviews comments, potentially leading to account takeover or unauthorized actions by the administrator.

Technologies: [Apache Roller](https://junglewise.ai/threats/technologies/roller). Vendors: [Apache](https://junglewise.ai/threats/vendors/apache).

## Quick answers

**Is CVE-2026-86507 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-86507 being exploited in the wild.

**How severe is CVE-2026-86507?** Medium severity, with a CVSS score of 6.1, published 28 September 2026.

**Which products and versions are affected?** Apache Roller 6.1.5.

**Is there a fix for CVE-2026-86507?** A patch was published on 2026-09-07: Fix merged in PR #181 to use double-quoted href attributes Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-86507 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-86507?** Check whether you run Apache Roller at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a stored cross-site scripting (XSS) flaw in the comment management page (Comments.jsp) where the comment author URL was wrapped in single-quoted href attributes, allowing attribute breakout. An anonymous attacker can submit a crafted comment with a malicious URL that breaks out of the single quotes and injects JavaScript, which executes in the browser session of any moderator or global administrator who views the comment management interface. The fix involves switching to double-quoted href attributes to properly contain externally supplied URL values.

## Affected products

- Apache Roller 6.1.5

## Timeline

- 2026-09-28: disclosed
- 2026-09-07: patched: Fix merged in PR #181 to use double-quoted href attributes

## References

- [https://github.com/apache/roller/pull/181](https://github.com/apache/roller/pull/181)
- [https://lists.apache.org/thread/rjyxvm0fgtdfxwkj5qv532htdbs05wff](https://lists.apache.org/thread/rjyxvm0fgtdfxwkj5qv532htdbs05wff)

## Related threats

- [Apache Roller XML-RPC deserialization remote code execution](https://junglewise.ai/threats/cve-2026-123374-deserialization-of-untrusted-data-vulnerability-in-apache-roller)
- [Apache Roller missing authorization in entry editor](https://junglewise.ai/threats/cve-2026-122300-missing-authorization-vulnerability-in-apache-roller-4-0-through)
- [Apache Roller stored cross-site scripting in weblog menu](https://junglewise.ai/threats/cve-2026-118414-improper-neutralization-of-input-during-web-page-generation)
- [Apache Roller stored cross-site scripting in blogroll import](https://junglewise.ai/threats/cve-2026-118413-improper-neutralization-of-input-during-web-page-generation)
- [Apache Roller CSRF allowing unauthenticated administrator account creation](https://junglewise.ai/threats/cve-2026-118411-cross-site-request-forgery-csrf-in-apache-roller-5-0-1-through-6)