CVE-2026-41929

Description

Vvveb before 1.0.8.2 contains an unauthenticated reflected cross-site scripting vulnerability in the visual editor preview renderer that allows attackers to execute arbitrary JavaScript by manipulating the r query parameter and _component_ajax POST parameter. Attackers can craft a malicious link or auto-submitted form that causes victims to execute attacker-controlled JavaScript in the context of the Vvveb origin, as the gating function isEditor() performs no session, role, or token verification and the view handler injects raw HTML POST body content without sanitization.

References

https://www.vulncheck.com/advisories/vvveb-unauthenticated-reflected-xss-via-visual-editor

https://github.com/givanz/Vvveb/security/advisories/GHSA-wwmv-4g9g-p48g

https://github.com/givanz/Vvveb/releases/tag/1.0.8.2

https://github.com/givanz/Vvveb/commit/54a9e846fb94192f1b31ae81d81d25c874662e6a

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4