CVE-2026-73237
Received Received - Intake

Cross-Site Scripting in Apache Allura Markdown Processing

Publication date: 2026-08-12

Last updated on: 2026-08-12

Assigner: Apache Software Foundation

Description
XSS vulnerability in Markdown handling in Apache Allura. This issue affects Apache Allura: from 1.10.0 before 1.19.1. Users are recommended to upgrade to version 1.19.1, which fixes the issue.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-12
Last Modified
2026-08-12
Generated
2026-08-12
AI Q&A
2026-08-12
EPSS Evaluated
N/A
NVD
CVE-2026-73237
EUVD
EUVD-2026-57344

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
apache allura From 1.10.0 (inc) to 1.19.1 (exc)
apache allura 1.19.1

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-80 The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a Cross-Site Scripting (XSS) vulnerability in Apache Allura's Markdown handling. It exists in versions from 1.10.0 up to but not including 1.19.1. Attackers could inject malicious scripts into Markdown content, which would execute when viewed by other users.

Impact Analysis

An attacker could steal user sessions, deface pages, or perform actions on behalf of users. Users viewing affected Markdown content could have their data compromised or be redirected to malicious sites.

Compliance Impact

This vulnerability could lead to unauthorized data access or disclosure, violating GDPR's data protection principles and HIPAA's security requirements for protected health information.

Mitigation Strategies

Upgrade Apache Allura to version 1.19.1 or later immediately to address the XSS vulnerability in Markdown handling.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-73237. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart