cbcvebase.
CVE-2026-33168
published 2026-03-23

CVE-2026-33168: 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…

low2.3CVSS 4.0
AVNACLATPPRNUIPVCLVILVANSCNSINSANEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
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.

Affected

7 ranges
VendorProductVersion rangeFixed in
debianrails
railsactionview< 7.2.3.17.2.3.1
railsactionview
railsactionview
railsactionview>= 0 < 7.2.3.17.2.3.1
railsactionview>= 8.0.0.beta1 < 8.0.4.18.0.4.1
railsactionview>= 8.1.0.beta1 < 8.1.2.18.1.2.1

CVSS provenance

nvdv4.02.3LOWCVSS: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
osv2.3LOW