XSS vulnerability in Markdown handling in Apache Allura. (CVE-2026-73237)
An XSS (Cross-Site Scripting) vulnerability exists in the Markdown handling component of Apache Allura. This vulnerability affects versions from 1.10.0 up to but not including 1.19.1. The issue is resolved in version 1.19.1, which users are advised to upgrade to in order to mitigate the risk.
AI Analysis
Technical Summary
CVE-2026-73237 is an XSS vulnerability in the Markdown processing functionality of Apache Allura. It affects versions starting at 1.10.0 and continuing up to but excluding 1.19.1. The vulnerability allows injection of malicious scripts via Markdown content, potentially leading to client-side code execution. The issue is fixed in Apache Allura version 1.19.1.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected user's browser when viewing maliciously crafted Markdown content. This may lead to session hijacking, defacement, or other client-side attacks. There are no known exploits in the wild at this time.
Mitigation Recommendations
Users should upgrade Apache Allura to version 1.19.1 or later, where this vulnerability has been fixed. No other mitigation or temporary workaround is indicated.
XSS vulnerability in Markdown handling in Apache Allura. (CVE-2026-73237)
Description
An XSS (Cross-Site Scripting) vulnerability exists in the Markdown handling component of Apache Allura. This vulnerability affects versions from 1.10.0 up to but not including 1.19.1. The issue is resolved in version 1.19.1, which users are advised to upgrade to in order to mitigate the risk.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-73237 is an XSS vulnerability in the Markdown processing functionality of Apache Allura. It affects versions starting at 1.10.0 and continuing up to but excluding 1.19.1. The vulnerability allows injection of malicious scripts via Markdown content, potentially leading to client-side code execution. The issue is fixed in Apache Allura version 1.19.1.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected user's browser when viewing maliciously crafted Markdown content. This may lead to session hijacking, defacement, or other client-side attacks. There are no known exploits in the wild at this time.
Mitigation Recommendations
Users should upgrade Apache Allura to version 1.19.1 or later, where this vulnerability has been fixed. No other mitigation or temporary workaround is indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-q6fp-vfv9-v477
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-73237"]
- State
- PUBLISHED
Threat ID: 6a7cd3e7bf8831d53918036c
Added to database: 08/12/2026, 20:13:27 UTC
Last enriched: 08/21/2026, 00:27:36 UTC
Last updated: 09/25/2026, 01:47:44 UTC
Views: 42
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