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CVE-2026-42140

Server-Side Request Forgery (SSRF) in PlantUML Macro via 'server' parameter PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
xwiki-contrib / macro-plantumlaffected < 2.4.1

CWE

CWE-918

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.