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.

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Mon, 12 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
Description 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.
Title LogicalDOC Community Edition through 9.3 Username Enumeration via AvatarServlet
First Time appeared Logicaldoc
Logicaldoc logicaldoc
Weaknesses CWE-204
CPEs cpe:2.3:a:logicaldoc:logicaldoc:*:*:*:*:community:*:*:*
Vendors & Products Logicaldoc
Logicaldoc logicaldoc
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-12T13:39:47.896Z

Reserved: 2026-10-12T13:25:18.180Z

Link: CVE-2026-109206

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-12T14:17:11.427

Modified: 2026-10-12T14:17:11.427

Link: CVE-2026-109206

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-12T18:15:14Z

Weaknesses