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MEDIUM severity

CVE-2023-25309 — rollout-ui

MEDIUMFix: fetlife/rollout-ui#15

CVE-2023-25309 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in rollout-ui. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for rollout-ui — see the affected versions and patch details below.

Cross Site Scripting (XSS) Vulnerability in Fetlife rollout-ui gem

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 9, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-25309.

EPSS Exploitation Probability

via FIRST.org ↗
0.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs45th percentile — riskier than 45% of all scored CVEsHighest risk
0.00%0.40%0.80%1.20%0.2%0.5%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
💎rollout-ui

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

Cross Site Scripting (XSS) Vulnerability in Fetlife rollout-ui version 0.5, allows attackers to execute arbitrary code via a crafted url to the delete a feature functionality.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
💎RubyGemsrollout-uiall versions0.5.3bundle update rollout-ui --conservative

Affected Products

1 product · 1 configurations
Application
rollout-uifetlife
≤ 0.5
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.

Cross Site Scripting (XSS) Vulnerability in Fetlife rollout-ui version 0…

cxsecurity.comNVDMay 2023

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update rollout-ui to 0.5.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-25309 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

Cross Site Scripting (XSS) Vulnerability in Fetlife rollout-ui version 0.5, allows attackers to execute arbitrary code via a crafted url to the delete a feature functionality.
O3 Security · Impact-Aware SCA

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CVE-2023-25309: rollout-ui RCE — Fixed in 0.5.3