CVE-2026-109206
LogicalDOC Community Edition through 9.3 Username Enumeration via AvatarServlet
LogicalDOC LogicalDOC Community Edition
CVSS
6.9MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.25%Chance of exploitation activity in the next 30 days, higher than 15% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
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.
Text from CVE List
Affected versions 1
- LogicalDOC Community Editionaffected: all versions through 9.3CVE List
References 5
- github.com/logicaldoc/community/commit/4e93a69526ae7fe50f670b85b3fc57181f3de3f7Fixvia CVE List
- vulncheck.com/advisories/logicaldoc-community-edition-through-9.3-username-enumeration-via-avatarservletAdvisoryvia CVE List
- github.com/logicaldoc/community/discussions/119Referencevia CVE List
- github.com/logicaldoc/community/blob/9.3/logicaldoc-webapp/src/main/java/com/logicaldoc/web/AvatarServlet.java#L63Referencevia CVE List
- github.com/logicaldoc/communityReferencevia CVE List