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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 5.1NVD modified 2026-10-26 20:10
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 5
- https://github.com/givanz/Vvveb/commit/54a9e846fb94192f1b31ae81d81d25c874662e6a
- https://github.com/givanz/Vvveb/releases/tag/1.0.8.2
- https://github.com/givanz/Vvveb/security/advisories/GHSA-wwmv-4g9g-p48g
- https://www.vulncheck.com/advisories/vvveb-unauthenticated-reflected-xss-via-visual-editor
- https://github.com/givanz/Vvveb/security/advisories/GHSA-wwmv-4g9g-p48g