Critical severity9.8NVD Advisory· Published Apr 20, 2026· Updated Apr 20, 2026
CVE-2026-39918
CVE-2026-39918
Description
Vvveb prior to 1.0.8.1 contains a code injection vulnerability in the installation endpoint where the subdir POST parameter is written unsanitized into the env.php configuration file without escaping or validation. Attackers can inject arbitrary PHP code by breaking out of the string context in the define statement to achieve unauthenticated remote code execution as the web server user.
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Affected products
1Patches
Vulnerability mechanics
References
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