EUVD-2026-30588Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
2DescriptionGitHub Advisory
Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.1, a Stored Cross-Site Scripting (XSS) vulnerability exists in the Vvveb CMS comment submission flow. The author field is submitted by an unauthenticated user on any public post page, stored without sanitization, and later rendered unsanitized in two distinct sinks: This vulnerability is fixed in 1.0.8.1.
AnalysisAI
Stored Cross-Site Scripting in Vvveb CMS comment submission allows unauthenticated attackers to inject malicious JavaScript through the author field on public post pages. The payload persists in the database and executes in two distinct contexts when administrators or other users view the comments, enabling session hijacking, credential theft, or administrative action manipulation. No public exploit code has been identified at time of analysis, though exploitation requires only user interaction (victim viewing the malicious comment). EPSS data not available; CVSS 6.1 reflects moderate severity with cross-site scope change.
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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