CVE-2026-33168 LOW

CVE-2026-33168: Rails has a possible XSS vulnerability in its Action View tag helpers

Vendor Rails
Product actionview
Weakness CWE-79 · XSS
Published March 23, 2026
Last update March 24, 2026
View on NVD All CVEs

CVSS base score

2.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

Description

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.

Key dates

Disclosure timeline

March 23, 2026 CVE published
March 24, 2026 Record updated