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CVE-2026-80180— Apache Allura: Stored XSS via markdown HTML processing

Quick assessment

Affected
Apache Software Foundation Apache Allura
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Allura 中通过 Markdown HTML 处理导致的存储型跨站脚本攻击（Stored XSS）。 此问题影响 Apache Allura 1.20.0 及之前版本。 建议用户升级至 1.21.0 版本，该版本已修复此问题。

AI Predicted 6.1 Difficulty: Moderate EPSS 0.20% · P10

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apache Software Foundation Apache Allura ≤ 1.20.0 affected
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I. Basic Information for CVE-2026-80180

Vulnerability Information
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Vulnerability Title
Apache Allura: Stored XSS via markdown HTML processing
Source: CVE Program / CVE List V5
Vulnerability Description
Stored XSS via markdown HTML processing in Apache Allura. This issue affects Apache Allura: from through 1.20.0. Users are recommended to upgrade to version 1.21.0, which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Allura 0 ~ 1.20.0 -

II. Public POCs for CVE-2026-80180

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III. Intelligence Information for CVE-2026-80180

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Mailing List Discussions for CVE-2026-80180 (1)

Same Patch Batch · Apache Software Foundation · 2026-09-04 · 7 CVEs total

CVE-2026-80181 Apache Allura: Server-side request forgery
CVE-2026-71216 Apache SkyWalking: PagerDuty alarm hook transmits the integration routing key over clearte
CVE-2026-81270 Apache Allura: Information exposure via search
CVE-2026-85229 Apache SkyWalking: CWE-79 stored XSS in Booster UI dashboard widgets (incomplete fix of CV
CVE-2026-80190 Apache Allura: Stored XSS via code repositories
CVE-2026-52691 Apache Griffin Hive Metastore Module: SQL Injection Vulnerability in Hive Metastore Module

IV. Related Vulnerabilities

Same product: Apache Allura
Same vendor: Apache Software Foundation
Same weakness: CWE-79

V. Comments for CVE-2026-80180

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