LogicalDOC Community Edition through 9.3 SQL Injection via tags.xml firstLetter

Advisories

LogicalDOC Community Edition through 9.3 SQL Injection via tags.xml firstLetter

severity: high
date: 10/12/2026
Affecting: LogicalDOC Community Edition <= 9.3
CVE: CVE-2026-109169
CWE: CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVSS: 7.1
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
References: https://github.com/logicaldoc/community/discussions/119
Patch Commit
https://github.com/logicaldoc/community/blob/9.3/logicaldoc-core/src/main/java/com/logicaldoc/core/document/HibernateDocumentDAO.java#L691
https://github.com/logicaldoc/community/blob/9.3/logicaldoc-webapp/src/main/java/com/logicaldoc/web/data/TagsDataServlet.java#L41
https://github.com/logicaldoc/community
Credit: ikram-4
Description: LogicalDOC Community Edition through 9.3 contains a sql injection vulnerability that allows authenticated users to execute crafted SQL via the firstLetter parameter of TagsDataServlet. Low-privileged attackers can inject UNION SELECT statements returned in the XML tag list to read usernames, email addresses and password hashes from ld_user.

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