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CVE-2026-42140

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 be
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d606f75212e2efdb2075da58c31875e0d71e7e189ac320fe3f054d258b75e23d
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"macro-plantuml","vendor":"xwiki-contrib","versions":[{"status":"affected","version":"< 2.4.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d9c2721792a029bbc2b9c9c6f85869f7d9f8ed8f29fef163c396409e9c92bb05 · sha256:08e21b729c52a2c7… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d9c2721792a029bbc2b9c9c6f85869f7d9f8ed8f29fef163c396409e9c92bb05 · sha256:08e21b729c52a2c7… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d9c2721792a029bbc2b9c9c6f85869f7d9f8ed8f29fef163c396409e9c92bb05 · sha256:08e21b729c52a2c7… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/xwiki-contrib/macro-plantuml/commit/c8b19bda93058794e04c8862fc7ca85c59b5fe5c","tags":["x_refsource_MISC"],"url":"https://github.com/xwiki-contrib/macro-plantuml/commit/c8b19bda93058794e04c8862fc7ca85c59b5fe5c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d9c2721792a029bbc2b9c9c6f85869f7d9f8ed8f29fef163c396409e9c92bb05 · sha256:08e21b729c52a2c7… · /containers/cna/references/1
{"name":"https://github.com/xwiki-contrib/macro-plantuml/security/advisories/GHSA-42fc-7w97-8vrc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/xwiki-contrib/macro-plantuml/security/advisories/GHSA-42fc-7w97-8vrc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d9c2721792a029bbc2b9c9c6f85869f7d9f8ed8f29fef163c396409e9c92bb05 · sha256:08e21b729c52a2c7… · /containers/cna/references/0
{"name":"https://jira.xwiki.org/browse/PLANTUML-25","tags":["x_refsource_MISC"],"url":"https://jira.xwiki.org/browse/PLANTUML-25"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d9c2721792a029bbc2b9c9c6f85869f7d9f8ed8f29fef163c396409e9c92bb05 · sha256:08e21b729c52a2c7… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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