CVE Catalog

CVE-2026-109206

MediumCVSS 5.3
Published: Translated: NVD NIST

Summary

LogicalDOC Community Edition through 9.3 contains a username enumeration vulnerability that allows unauthenticated attackers to identify valid accounts because the AvatarServlet (/avatar) performs no session validation.

Risk Assessment

Attackers can supply usernames or numeric IDs in the userId parameter and compare 1x1 transparent images against real avatars to enumerate users and retrieve profile pictures.

Recommendation

Update LogicalDOC to the latest version if available and consider adding session validation for AvatarServlet.

Other vulnerabilities in LogicalDOC

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Original NVD description (English source)

LogicalDOC Community Edition through 9.3 contains a username enumeration vulnerability that allows unauthenticated attackers to identify valid accounts because the AvatarServlet (/avatar) performs no session validation. Attackers can supply usernames or numeric IDs in the userId parameter and compare 1x1 transparent images against real avatars to enumerate users and retrieve profile pictures.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS