CVE-2026-11511 MEDIUM

CVE-2026-11511: Bolt CMS HTML Attribute TextType.php HTML injection

Vendor Bolt
Product CMS
Weakness CWE-80 · XSS · basic
Published June 8, 2026
Last update June 8, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

Description

A weakness has been identified in Bolt CMS up to 3.7.5. This vulnerability affects unknown code of the file src/Storage/Field/Type/TextType.php of the component HTML Attribute Handler. Executing a manipulation of the argument style can lead to HTML injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The GitHub repository was archived by the owner and is now read-only. This vulnerability only affects products that are no longer supported by the maintainer.

Key dates

Disclosure timeline

June 8, 2026 CVE published
June 8, 2026 Record updated