CVE-2026-14939

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreHIGH confidence

Score 6.8 from GitHub Security Advisory published 2026-08-04. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.8Exploit: None knownExposed: 0

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

The Visualizer WordPress plugin before 4.0.6 does not restrict a user-supplied URL to safe address ranges before fetching it server-side, allowing users with Contributor-level access and above to perform Server-Side Request Forgery against link-local instance-metadata endpoints. As the fetched response is returned in the reply, the attack is non-blind, enabling retrieval of cloud instance metadata (including IAM credentials) on cloud-hosted sites.

CVSS v3
6.8
EG Score
6.8(high)
EG Risk
31(Track)
EG Risk 31/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity68% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

August 4, 2026

Last Modified

August 4, 2026

Advisory Details (1)

Auto-updated Aug 4, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Visualizer: Tables and Charts Manager < 4.0.6 – Contributor+ Server-Side Request Forgery via JSON Import | CVE 2026-14939 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/b9a6211c-3173-4dd6-8a8d-32be248762bb/

Vendor Advisories for CVE-2026-14939(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 53× 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. 2026-08-21 03:34 UTCEG score recompute
  2. 2026-08-21 03:34 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 03:00 UTCEG score recompute
  5. 2026-08-20 03:00 UTCGHSA enrichment
  6. 2026-08-19 17:03 UTCEPSS rescore
  7. 2026-08-19 02:26 UTCEG score recompute
  8. 2026-08-19 02:25 UTCGHSA enrichment
  9. 2026-08-18 13:48 UTCEPSS rescore
  10. 2026-08-18 01:48 UTCEG score recompute
  11. 2026-08-18 01:48 UTCGHSA enrichment
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-17 01:14 UTCEG score recompute
  14. 2026-08-17 01:14 UTCGHSA enrichment
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 02:14 UTCEPSS rescore
  17. 2026-08-16 00:40 UTCEG score recompute
  18. 2026-08-16 00:40 UTCGHSA enrichment
  19. 2026-08-15 01:30 UTCEPSS rescore
  20. 2026-08-15 00:06 UTCGHSA enrichment
  21. 2026-08-13 23:32 UTCEG score recompute
  22. 2026-08-13 23:32 UTCGHSA enrichment
  23. 2026-08-13 22:00 UTCEPSS rescore
  24. 2026-08-12 22:57 UTCEG score recompute
  25. 2026-08-12 22:57 UTCGHSA enrichment
Show 28 more
  1. 2026-08-12 13:50 UTCEPSS rescore
  2. 2026-08-11 22:23 UTCEG score recompute
  3. 2026-08-11 22:23 UTCGHSA enrichment
  4. 2026-08-11 13:42 UTCEPSS rescore
  5. 2026-08-10 23:59 UTCEPSS rescore
  6. 2026-08-10 21:49 UTCGHSA enrichment
  7. 2026-08-09 21:15 UTCEG score recompute
  8. 2026-08-09 21:15 UTCGHSA enrichment
  9. 2026-08-09 13:46 UTCEPSS rescore
  10. 2026-08-08 20:41 UTCEG score recompute
  11. 2026-08-08 20:41 UTCGHSA enrichment
  12. 2026-08-08 16:37 UTCEPSS rescore
  13. 2026-08-07 20:07 UTCEG score recompute
  14. 2026-08-07 20:07 UTCGHSA enrichment
  15. 2026-08-06 19:33 UTCEG score recompute
  16. 2026-08-06 19:33 UTCGHSA enrichment
  17. 2026-08-06 13:46 UTCEPSS rescore
  18. 2026-08-05 19:17 UTCEPSS rescore
  19. 2026-08-05 18:59 UTCEG score recompute
  20. 2026-08-05 18:59 UTCGHSA enrichment
  21. 2026-08-04 18:25 UTCGHSA enrichment
  22. 2026-08-04 17:49 UTCEG score recompute▲ 6.80
  23. 2026-08-04 17:49 UTCGHSA enrichment
  24. 2026-08-04 17:46 UTCMITRE cvelistV5CVSS v3 → 6.8 · severity → MEDIUM
  25. 2026-08-04 15:09 UTCEPSS rescore
  26. 2026-08-04 07:17 UTCNVD update
  27. 2026-08-04 06:35 UTCEG score recompute
  28. 2026-08-04 06:33 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-14939?
CVE-2026-14939 is a medium vulnerability published on August 4, 2026. The Visualizer WordPress plugin before 4.0.6 does not restrict a user-supplied URL to safe address ranges before fetching it server-side, allowing users with Contributor-level access and above to perform Server-Side Request Forgery against link-local instance-metadata endpoints. As the fetched…
When was CVE-2026-14939 disclosed?
CVE-2026-14939 was first published in the National Vulnerability Database on August 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14939 actively exploited?
CVE-2026-14939 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 85.3% of all scored CVEs.
What is the CVSS score of CVE-2026-14939?
CVE-2026-14939 has a CVSS v3.1 base score of 6.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-14939?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14939, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-14939

Explore →

Is Your Infrastructure Affected by CVE-2026-14939?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs