CVE-2026-33168

LOW

Rails Action View Tag Helpers - Cross-Site Scripting

Title source: manual
STIX 2.1

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.

References (7)

Core 7

Scores

CVSS v4 2.3
EPSS 0.0052
EPSS Percentile 39.7%
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (6)
rails/actionview < 7.2.3.1
rails/actionview >= 8.0.0.beta1, < 8.0.4.1
rails/actionview >= 8.1.0.beta1, < 8.1.2.1
rubygems/actionview 0 - 7.2.3.1RubyGems
rubygems/actionview 8.0.0.beta1 - 8.0.4.1RubyGems
rubygems/actionview 8.1.0.beta1 - 8.1.2.1RubyGems
Published Mar 23, 2026
Tracked Since Mar 24, 2026