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MEDIUM severity

CVE-2023-25015 — clockwork_web

MEDIUMFix: ankane/clockwork_web@ec28965

CVE-2023-25015 is a medium-severity (CVSS 6.5) Cross-Site Request Forgery (CSRF) vulnerability in clockwork_web. A fix is available for clockwork_web — see the affected versions and patch details below.

Clockwork Web contains a Cross-Site Request Forgery Vulnerability with Rails < 5.2

Also known asGHSA-p4xx-w6fr-c4w9
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 10, 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 CVE-2023-25015.

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs30th percentile — riskier than 30% of all scored CVEsHighest risk
0.00%0.29%0.57%0.86%0.1%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
💎clockwork_web

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

Clockwork Web before 0.1.2, when used with Rails before 5.2 is used, allows Cross-Site Request Forgery (CSRF). A CSRF attack works by getting an authorized user to visit a malicious website and then performing requests on behalf of the user. In this instance, actions include enabling and disabling jobs. All users running an affected release on Rails < 5.2 should upgrade immediately.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
💎RubyGemsclockwork_weball versions0.1.2bundle update clockwork_web --conservative

Affected Products

1 product · 1 configurations
Application
clockwork webclockwork_web_project
< 0.1.2
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update clockwork_web to 0.1.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-25015 is resolved across your whole dependency graph.

  3. 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.

Frequently Asked Questions

Clockwork Web before 0.1.2, when used with Rails before 5.2 is used, allows Cross-Site Request Forgery (CSRF). A CSRF attack works by getting an authorized user to visit a malicious website and then performing requests on behalf of the user. In this instance, actions include enabling and disabling jobs. All users running an affected release on Rails < 5.2 should upgrade immediately.
O3 Security · Impact-Aware SCA

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CVE-2023-25015: clockwork_web CSRF — Fixed in 0.1.2