Skip to content
Fencer Vulns
medium 5.4

CVE-2024-27285 json

YARD's default template vulnerable to Cross-site Scripting in generated frames.html

published 2024-02-28 2 y ago modified 2026-09-10 1 mo ago also EUVD-2024-0579 , GHSA-8mq4-9jjh-9xrc

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 64%
public exploits
0
none known

Summary

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.

Patch / fix

  • rubygems yard 0.9.36
  • yardoc yard 0.9.36
  • yard Debian 12 0.9.28-2+deb12u2
  • yard Debian 14, Debian 13 0.9.36-1

debian advisories DEBIAN-CVE-2024-27285

  • yard Ubuntu 20.04 LTS 0.9.24-1+deb11u1build0.20.04.1
  • yard Ubuntu 22.04 LTS 0.9.26-1ubuntu0.1
  • yard Ubuntu Pro 16.04 LTS 0.8.7.6+git20160220-3ubuntu0.1~esm1
  • yard Ubuntu Pro 18.04 LTS 0.9.12-2ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2024-27285

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-27285 updated cvss 5.4

yard: Cross-site scripting in the frams.erb template file

  • Red Hat Satellite 6 foreman-installer, foreman-installer-katello
    affected: no fix available
  • Red Hat OpenStack Platform 16.1 puppet-dns Red Hat OpenStack Platform 16.2 puppet-dns
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

1.06% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/lsegal/yard/security/advisories/GHSA-8mq4-9jjh-9xrc referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/rubysec/ruby-advisory-db/blob/master/gems/yard/CVE-2024-27285.yml referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
GitHub 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
rubygems yard
<0.9.36
0.9.36

Affected products

  • lsegal yard
  • yardoc yard

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.