What’s Vulnerable › Vulnerabilities

CVE-2024-27285: YARD's default template vulnerable to Cross-site Scripting in generated frames.html

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-02-28 · updated 2026-06-17
• Weakness: CWE-79

Description

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.

Affected products

• Debian Linux: 10.0
• Fedoraproject Fedora: 38
• lsegal yard: before 0.9.36 — fixed in 0.9.36

How to fix

Upgrade to a fixed version: lsegal yard 0.9.36. Check the vendor advisory for mitigations.

References

• https://github.com/lsegal/yard/commit/1fcb2d8b316caf8779cfdcf910715e9ab583f0aa
• https://github.com/lsegal/yard/commit/2069e2bf08293bda2fcc78f7d0698af6354054be
• https://github.com/lsegal/yard/pull/1538
• https://github.com/lsegal/yard/security/advisories/GHSA-8mq4-9jjh-9xrc
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/yard/CVE-2024-27285.yml
• https://lists.debian.org/debian-lts-announce/2024/03/msg00006.html
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MR3Z2E2UIZZ7YOR7R645EVSBGWMB2RGA/
• https://github.com/lsegal/yard/commit/1fcb2d8b316caf8779cfdcf910715e9ab583f0aa
• https://github.com/lsegal/yard/commit/2069e2bf08293bda2fcc78f7d0698af6354054be
• https://github.com/lsegal/yard/pull/1538
• https://github.com/lsegal/yard/security/advisories/GHSA-8mq4-9jjh-9xrc
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/yard/CVE-2024-27285.yml

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