{"cve":"CVE-2026-42140","nvd":{"published":"2026-05-04T18:16:31.677","modified":"2026-10-26T19:10:00.163","status":"Deferred","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N","score":4.4},"cwes":["CWE-918"],"references":["https://github.com/xwiki-contrib/macro-plantuml/commit/c8b19bda93058794e04c8862fc7ca85c59b5fe5c","https://github.com/xwiki-contrib/macro-plantuml/security/advisories/GHSA-42fc-7w97-8vrc","https://jira.xwiki.org/browse/PLANTUML-25"],"products":[],"source":"nvd","synced_at":"2026-10-26T19:31:02.781428341+00:00"},"epss":{"cve":"CVE-2026-42140","score":0.00179,"percentile":0.07407,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-42fc-7w97-8vrc","url":"https://osv.dev/vulnerability/GHSA-42fc-7w97-8vrc","summary":"XWiki PlantUML Macro Vulnerable to Server-Side Request Forgery (SSRF) via 'server' parameter","modified":"2026-05-05T19:56:33.898902Z","packages":[{"ecosystem":"Maven","name":"org.xwiki.contrib.plantuml:macro-plantuml-macro","purl":"pkg:maven/org.xwiki.contrib.plantuml/macro-plantuml-macro","ranges":["<2.4.1"],"fixed":["2.4.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}