What is CVE-2024-27285?

CVE-2024-27285 is a medium-severity vulnerability in Lsegal Yard, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2024-02-28.

How severe is CVE-2024-27285?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2024-27285 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Lsegal Yard

CVE-2024-27285

YARD is a Ruby Documentation tool. The "frames.html" file within the Yard Doc's generated documentation is vulnerable to Cross-Site Scripting (XSS) attacks due to inadequate sanitization of user input within the JavaScript segment of the "frames.erb" template file. This vulnerability is fixed in 0.9.36.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2024-02-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.011 (63.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Lsegal Yard — versions < 0.9.36
Yardoc Yard
Debian Linux — versions 10.0
Fedoraproject Fedora — versions 38

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

github.com/lsegal/yard/security/advisories/GHSA-8mq4-9jjh-9xrc (Exploit, Vendor Advisory)
github.com/lsegal/yard/pull/1538 (Patch, Issue Tracking)
github.com/lsegal/yard/commit/1fcb2d8b316caf8779cfdcf910715e9ab583f0aa (Patch)
github.com/lsegal/yard/commit/2069e2bf08293bda2fcc78f7d0698af6354054be (Patch)
github.com/rubysec/ruby-advisory-db/blob/master/gems/yard/CVE-2024-27285.yml (Exploit, Third Party Advisory)
lists.debian.org/debian-lts-announce/2024/03/msg00006.html (Mailing List)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List)

Frequently asked questions

What is CVE-2024-27285?: CVE-2024-27285 is a medium-severity vulnerability in Lsegal Yard, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2024-02-28.
How severe is CVE-2024-27285?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2024-27285 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.