TI-2023-03206 Aliases CVE-2023-3431 GHSA-p2mf-q26j-3xmh

Improper Access Control in plantuml/plantuml

LOW 26CWE-284Published 2023-06-27 · Updated 2025-02-13

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-284.

Summary

Improper Access Control in GitHub repository plantuml/plantuml prior to 1.2023.9.

Why it matters now

EPSS 0.00866 58th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed plantuml/plantuml (plantuml): 1.2023.9net.sourceforge.plantuml:plantuml-mit (Maven): 1.2023.9

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
plantuml	plantuml/plantuml	before 1.2023.9	1.2023.9	Patch available	CNA
—	net.sourceforge.plantuml:plantuml-mit (Maven)	before 1.2023.9	1.2023.9	Patch available	GHSA-p2mf-q26j-3xmh

plantuml/plantuml Vendorplantuml Affected before 1.2023.9 Fixed in 1.2023.9 Patch available CNA
net.sourceforge.plantuml:plantuml-mit (Maven) Vendor— Affected before 1.2023.9 Fixed in 1.2023.9 Patch available GHSA-p2mf-q26j-3xmh

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:plantuml:plantuml::::::::	before 1.2023.9	Vulnerable	plantuml
cpe:2.3:o:fedoraproject:fedora:39:::::::*	39	Vulnerable	Fedoraproject

cpe:2.3:a:plantuml:plantuml:*:*:*:*:*:*:*:* Versions before 1.2023.9 Vulnerable ·plantuml
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject

Remediation

Fix · CNA plantuml/plantuml (plantuml) Fixed in 1.2023.9
Fix · GHSA-p2mf-q26j-3xmh net.sourceforge.plantuml:plantuml-mit (Maven) Fixed in 1.2023.9 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2023-06-27
plantuml/plantuml 1.2023.9
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2023-03207 Server-Side Request Forgery (SSRF) in plantuml/plantumlPriority MEDIUM 44
Show all 2 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2023-3431
2026-10-03 Alias added: GHSA-p2mf-q26j-3xmh

References

Exploit 1

https://huntr.dev/bounties/fa741f95-b53c-4ed7-b157-e32c5145164c

Patch 1

https://github.com/plantuml/plantuml/commit/fbe7fa3b25b4c887d83927cffb1009ec6cb8ab1e

Advisory 2

Other 2

TI-2023-03207 Server-Side Request Forgery (SSRF) in plantuml/plantuml CVSS 3.1CRITICAL 10.0
TI-2022-01260 URL Restriction Bypass in plantuml/plantuml CVSS 3.1CRITICAL 9.1
TI-2022-01118 XSS via Embedded SVG in SVG Diagram Format in plantuml/plantuml CVSS 3.1MEDIUM 6.1
TI-2026-00639 Cross-site scripting in net.sourceforge.plantuml:plantuml CVSS 4.0MEDIUM 5.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences