CVE-2026-42140
MEDIUM
4,4
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: low
User Interaction: required
Scope: changed
Confidentiality: low
Integrity: low
Availability: none
Description
AI Translation Available
PlantUML Macro is a macro for rendering UML diagrams from simple textual schemes. Prior to version 2.4.1, the PlantUML Macro is vulnerable to Server-Side Request Forgery (SSRF). The macro allows users to specify an alternative PlantUML server via the server parameter. However, the application does not validate the supplied URL. An attacker can supply an internal IP address or a malicious external URL. The XWiki server will attempt to connect to this URL to 'render' the diagram. This issue has been patched in version 2.4.1.
918
Server-Side Request Forgery (SSRF)
IncompleteCommon Consequences
Security Scopes Affected:
Confidentiality
Integrity
Access Control
Potential Impacts:
Read Application Data
Execute Unauthorized Code Or Commands
Bypass Protection Mechanism
Applicable Platforms
Technologies:
AI/ML, Web Based, Web Server
https://github.com/xwiki-contrib/macro-plantuml/commit/c8b19bda93058794e04c8862…
https://github.com/xwiki-contrib/macro-plantuml/security/advisories/GHSA-42fc-7…
https://jira.xwiki.org/browse/PLANTUML-25