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💎
💎 RubyGems
Not in CISA KEV
HIGH severity

Decidim has a cross-site scripting vulnerability in the version control pageGHSA-cc4g-m3g7-xmw8

HIGHFix: decidim/decidim@8a18c8b

GHSA-cc4g-m3g7-xmw8 is a high-severity (CVSS 7.1) Cross-site Scripting (XSS) vulnerability in decidim. A fix is available for decidim — see the affected versions and patch details below.

Also known asCVE-2024-41673
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-cc4g-m3g7-xmw8.

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs37th percentile — riskier than 37% of all scored CVEsHighest risk
0.00%0.31%0.62%0.92%0.4%0.4%May 26Sep 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
💎decidim

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

Description

Impact

The version control feature used in resources is subject to potential cross-site scripting (XSS) attack through a malformed URL.

Workarounds

Not available

References

OWASP ASVS v4.0.3-5.1.3

Credits

This issue was discovered in a security audit organized by Open Source Politics against Decidim done during July 2025.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
💎RubyGemsdecidimall versions0.27.8bundle update decidim --conservative

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update decidim to 0.27.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-cc4g-m3g7-xmw8 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

### Impact The version control feature used in resources is subject to potential cross-site scripting (XSS) attack through a malformed URL. ### Workarounds Not available ### References OWASP ASVS v4.0.3-5.1.3 ### Credits This issue was discovered in a security audit organized by [Open Source Politics](https://opensourcepolitics.eu/) against Decidim done during July 2025.
O3 Security · Impact-Aware SCA

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Decidim has a cross-site scripting vulnerability in the…