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CRITICAL severity

Cross-site Scripting in showdoc/showdocGHSA-rphc-h572-2x9f

CRITICALFix: star7th/showdoc@92bc6a8

GHSA-rphc-h572-2x9f is a critical-severity (CVSS 9) Unrestricted File Upload vulnerability in showdoc/showdoc. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for showdoc/showdoc — see the affected versions and patch details below.

Also known asCVE-2022-0960
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 1, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.9%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs58th percentile — riskier than 58% of all scored CVEsHighest risk
0.00%0.45%0.90%1.35%0.4%0.9%May 26Aug 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘showdoc/showdoc

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

ShowDoc is a tool greatly applicable for an IT team to share documents online. showdoc/showdoc allows .properties files to upload which lead to stored XSS in versions prior to 2.10.4. This allows attackers to execute malicious scripts in the user's browser. This issue was patched in version 2.10.4. There is currently no known workaround.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistshowdoc/showdocall versions2.10.4composer require showdoc/showdoc:^2.10.4

Affected Products

1 product · 1 configurations
Application
showdocshowdoc
< 2.10.4
range
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Stored XSS viva .properties file upload in GitHub repository star7th/sho…

huntr.devNVDMar 2022

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for showdoc/showdoc, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update showdoc/showdoc to 2.10.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-rphc-h572-2x9f is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

ShowDoc is a tool greatly applicable for an IT team to share documents online. showdoc/showdoc allows .properties files to upload which lead to stored XSS in versions prior to 2.10.4. This allows attackers to execute malicious scripts in the user's browser. This issue was patched in version 2.10.4. There is currently no known workaround.
O3 Security · Impact-Aware SCA

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Cross-site Scripting in showdoc/showdoc (Critical 9)