MEDIUM
CVE-2023-3431
CWE-284Published: June 27, 2023· Updated: Jun 17, 2026
5.3
CVSS v3.1
Official Description
Improper Access Control in GitHub repository plantuml/plantuml prior to 1.2023.9.
Technical Analysis
CVE-2023-3431 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (6)
→
https://huntr.dev/bounties/fa741f95-b53c-4ed7-b157-e32c5145164cExploit · Patch · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/[email protected]/message/FV7XL3CY3K3K5ER3ASMEQA546MIQQ7QM/Mailing List · Third Party Advisory
→
https://huntr.dev/bounties/fa741f95-b53c-4ed7-b157-e32c5145164cExploit · Patch · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/[email protected]/message/FV7XL3CY3K3K5ER3ASMEQA546MIQQ7QM/Mailing List · Third Party Advisory
Quick Facts
CVE IDCVE-2023-3431
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-284
CISA KEVNo
Affected2 vendor(s)
PublishedJun 27, 2023
Related CVEs (CWE-284)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-3431 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.