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CVE-2026-33168GHSA-V55J-83PF-R9CQ

Rails has a possible XSS vulnerability in its Action View tag helpers

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 8.1.2.1, 8.0.4.1, 7.2.3.1
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

Action View provides conventions and helpers for building web pages with the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed, producing malformed HTML. A carefully crafted attribute value could then be misinterpreted by the browser as a separate attribute name, possibly leading to XSS. Applications that allow users to specify custom HTML attributes are affected. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • rails actionview

    From 8.1.0.beta1 · fixed in 8.1.2.1; From 8.0.0.beta1 · fixed in 8.0.4.1; fixed in 7.2.3.1

  • actionviewRubyGems

    From 8.1.0.beta1 · fixed in 8.1.2.1

  • actionviewRubyGems

    From 8.0.0.beta1 · fixed in 8.0.4.1

  • actionviewRubyGems

    fixed in 7.2.3.1

References 7

GitHub · rails/rails