CVE-2023-50727 — Resque is a Redis-backed Ruby library for creating background jobs, placing them

Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later. Reflected XSS issue occurs when /queues is appended with /"><svg%20onload=alert(domain)>. This issue has been patched in version 2.6.0.

01What is this vulnerability?

Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later. Reflected XSS issue occurs when /queues is appended with /"><svg%20onload=alert(domain)>. This issue has been patched in version 2.6.0.

02Affected products

Vendor	Product	Versions
resque	resque	< 2.6.0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-12-22T20:10:10.964Z
• Last modified: 2025-04-23T16:17:49.438Z

09References

• github.com — https://github.com/resque/resque/security/advisories/GHSA-r9mq-m72x-257g
• github.com — https://github.com/resque/resque/pull/1865
• github.com — https://github.com/resque/resque/commit/7623b8dfbdd0a07eb04b19fb25b16a8d6f087f9a