TI-2026-61927 Aliases CVE-2026-91204 GHSA-xg59-jgm4-xmq5

Apache Roller: Stored javascript: URI in HTML comments

LOW 27CWE-79Published 2026-09-28 · Updated 2026-09-30

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00253 16th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Apache	Apache Roller	6.1.5	—	No fix listed	CNA

Apache Roller VendorApache Affected 6.1.5 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:apache:roller::::::::	—	—	Apache

cpe:2.3:a:apache:roller:*:*:*:*:*:*:*:* Versions — — ·Apache

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-91204
2026-10-03 Alias added: GHSA-xg59-jgm4-xmq5

References

Patch 1

https://github.com/apache/roller/pull/190

Advisory 1

https://lists.apache.org/thread/4qzp8m0438056l5t6m6719ob79gx72lz

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Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences