CVE-2023-4634

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because EPSS predicts 92% probability of exploitation within the next 30 days (top 0.3% of all CVEs). NVD baseline CVSS 9.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Elevated
9.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 83%
CISA-KEV: Not listedEPSS: 83%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The Media Library Assistant plugin for WordPress is vulnerable to Local File Inclusion and Remote Code Execution in versions up to, and including, 3.09. This is due to insufficient controls on file paths being supplied to the 'mla_stream_file' parameter from the ~/includes/mla-stream-image.php file, where images are processed via Imagick(). This makes it possible for unauthenticated attackers to supply files via FTP that will make directory lists, local file inclusion, and remote code execution possible.

CVSS v3
9.8
EG Score
9.8(high)
EPSS
99.6%
KEV
Not listed

Published

September 6, 2023

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated May 18, 2026
No patch confirmed yet.
generic

Blog: CVE-2023-4634 - Tricky Unauthenticated RCE on Wordpress Media Library Assistant Plugin - Patrowl

https://patrowl.io/blog-wordpress-media-library-rce-cve-2023-4634/
generic

Packet Storm

https://packetstormsecurity.com/files/174508/wpmla309-lfiexec.tgz
generic

GitHub - Patrowl/CVE-2023-4634: CVE-2023-4634 · GitHub

https://github.com/Patrowl/CVE-2023-4634/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 25× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-15 16:56 UTCEPSS rescore
  2. 2026-07-15 16:56 UTCEPSS rescore
  3. 2026-07-15 01:59 UTCEPSS rescore
  4. 2026-07-15 01:59 UTCEPSS rescore
  5. 2026-07-12 05:45 UTCEPSS rescore
  6. 2026-07-09 19:08 UTCEPSS rescore
  7. 2026-07-06 16:26 UTCEPSS rescore
  8. 2026-07-06 16:26 UTCEPSS rescore
  9. 2026-07-04 06:29 UTCEPSS rescore
  10. 2026-07-04 06:29 UTCEPSS rescore
  11. 2026-07-01 15:05 UTCEPSS rescore
  12. 2026-06-30 23:21 UTCEPSS rescore
  13. 2026-06-30 23:21 UTCEPSS rescore
  14. 2026-06-29 14:05 UTCEPSS rescore
  15. 2026-06-27 03:07 UTCEPSS rescore
  16. 2026-06-25 13:48 UTCEPSS rescore
  17. 2026-06-25 13:48 UTCEPSS rescore
  18. 2026-06-23 21:31 UTCEPSS rescore
  19. 2026-06-23 21:31 UTCEPSS rescore
  20. 2026-06-21 14:55 UTCEPSS rescore
  21. 2026-06-21 14:55 UTCEPSS rescore
  22. 2026-06-21 01:58 UTCEPSS rescore
  23. 2026-06-21 01:58 UTCEPSS rescore
  24. 2026-06-16 17:51 UTCEPSS rescore
  25. 2026-06-16 17:51 UTCEPSS rescore
Show 25 more
  1. 2026-06-15 17:47 UTCEPSS rescore
  2. 2026-06-12 23:11 UTCEPSS rescore
  3. 2026-06-12 23:10 UTCEPSS rescore
  4. 2026-06-11 13:59 UTCEPSS rescore
  5. 2026-06-10 13:21 UTCEPSS rescore
  6. 2026-06-08 14:16 UTCEPSS rescore
  7. 2026-06-08 14:16 UTCEPSS rescore
  8. 2026-06-04 13:11 UTCEPSS rescore
  9. 2026-06-04 13:11 UTCEPSS rescore
  10. 2026-06-04 13:11 UTCEPSS rescore
  11. 2026-06-01 13:51 UTCEPSS rescore
  12. 2026-06-01 13:51 UTCEPSS rescore
  13. 2026-05-31 22:30 UTCEPSS rescore
  14. 2026-05-31 22:30 UTCEPSS rescore
  15. 2026-05-29 13:43 UTCEPSS rescore
  16. 2026-05-27 13:39 UTCEPSS rescore
  17. 2026-05-27 13:39 UTCEPSS rescore
  18. 2026-05-22 06:02 UTCEG score recompute
  19. 2026-05-22 06:02 UTCGHSA enrichment
  20. 2026-05-21 22:41 UTCEPSS rescore
  21. 2026-05-21 13:06 UTCOSV refresh
  22. 2026-05-18 21:30 UTCEPSS rescore
  23. 2026-05-18 21:30 UTCEPSS rescore
  24. 2026-05-18 21:30 UTCEPSS rescore
  25. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 GitHub PoC) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-51737
    First seen Oct 9, 2023

    Media Library Assistant Wordpress Plugin - RCE and LFI

    Open source ↗
  • GitHub PoCPatrowl/CVE-2023-4634
    First seen Sep 5, 2023

    CVE-2023-4634

    Open source ↗
  • Nucleihttp/cves/2023/CVE-2023-4634.yaml
    First seen Jan 1, 2023

    Media Library Assistant < 3.09 - Remote Code Execution/Local File Inclusion

    Open source ↗

Frequently asked(5)

What is CVE-2023-4634?
CVE-2023-4634 is a critical vulnerability published on September 6, 2023. The Media Library Assistant plugin for WordPress is vulnerable to Local File Inclusion and Remote Code Execution in versions up to, and including, 3.09. This is due to insufficient controls on file paths being supplied to the 'mlastreamfile' parameter from the ~/includes/mla-stream-image.php file,…
When was CVE-2023-4634 disclosed?
CVE-2023-4634 was first published in the National Vulnerability Database on September 6, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-4634 actively exploited?
CVE-2023-4634 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-4634?
CVE-2023-4634 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-4634?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-4634, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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