GHSA-rx9f-5ggv-5rh6 is a medium-severity (CVSS 6.8) Cross-site Scripting (XSS) vulnerability in decidim-admin. A fix is available for decidim-admin — see the affected versions and patch details below.
Decidim::Admin vulnerable to cross-site scripting (XSS) in the admin activity log
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-rx9f-5ggv-5rh6.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
GHSA-rx9f-5ggv-5rh6 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,166 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
decidim-admin💎decidim-adminReal-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 admin panel is subject to potential XSS attach in case an admin assigns a valuator to a proposal, or does any other action that generates an admin activity log where one of the resources has an XSS crafted.
Patches
N/A
Workarounds
Redirect the pages /admin and /admin/logs to other admin pages to prevent this access (i.e. /admin/organization/edit)
References
OWASP ASVS v4.0.3-5.1.3
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 💎RubyGems | decidim-admin | all versions | 0.27.7bundle update decidim-admin --conservative |
| 💎RubyGems | decidim-admin | ≥ 0.28.0&&< 0.28.2 | 0.28.2bundle update decidim-admin --conservative |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for decidim-admin, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update decidim-admin to 0.27.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-rx9f-5ggv-5rh6 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-rx9f-5ggv-5rh6 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-rx9f-5ggv-5rh6. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-rx9f-5ggv-5rh6 in your dependencies?
O3 Security finds GHSA-rx9f-5ggv-5rh6 across RubyGems dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.