CVE-2026-14553

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-05. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: Elevated riskExposed: 0

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

The zportals WordPress plugin before 6.3.4 does not properly validate uploaded files, trusting the client-supplied content type and preserving the original file extension, allowing any authenticated user (Subscriber or higher) to upload arbitrary PHP files and achieve remote code execution.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
52(Track*)
EG Risk 52/100SSVC: 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
Severity81% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 5, 2026

Advisory Details (1)

Auto-updated Aug 5, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Zportals < 6.3.4 – Subscriber+ Arbitrary File Upload | CVE 2026-14553 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/02c83708-8f2f-48f8-b73e-df37a42ab360/

Vendor Advisories for CVE-2026-14553(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 25× in last 7d / 65× 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. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 20:30 UTCGHSA enrichment
  3. 2026-08-20 07:57 UTCGHSA enrichment
  4. 2026-08-19 19:24 UTCEG score recompute
  5. 2026-08-19 19:24 UTCGHSA enrichment
  6. 2026-08-19 17:03 UTCEPSS rescore
  7. 2026-08-19 06:49 UTCGHSA enrichment
  8. 2026-08-18 18:16 UTCEG score recompute
  9. 2026-08-18 18:16 UTCGHSA enrichment
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-18 05:40 UTCGHSA enrichment
  12. 2026-08-17 17:08 UTCEG score recompute
  13. 2026-08-17 17:07 UTCGHSA enrichment
  14. 2026-08-17 04:35 UTCGHSA enrichment
  15. 2026-08-16 16:02 UTCEG score recompute
  16. 2026-08-16 16:02 UTCGHSA enrichment
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 03:29 UTCEG score recompute
  19. 2026-08-16 03:29 UTCGHSA enrichment
  20. 2026-08-16 02:14 UTCEPSS rescore
  21. 2026-08-15 14:56 UTCGHSA enrichment
  22. 2026-08-15 02:23 UTCEG score recompute
  23. 2026-08-15 02:23 UTCGHSA enrichment
  24. 2026-08-15 01:30 UTCEPSS rescore
  25. 2026-08-14 13:51 UTCGHSA enrichment
Show 40 more
  1. 2026-08-14 01:18 UTCEG score recompute
  2. 2026-08-14 01:18 UTCGHSA enrichment
  3. 2026-08-13 22:00 UTCEPSS rescore
  4. 2026-08-13 12:45 UTCGHSA enrichment
  5. 2026-08-13 00:12 UTCEG score recompute
  6. 2026-08-13 00:12 UTCGHSA enrichment
  7. 2026-08-12 13:50 UTCEPSS rescore
  8. 2026-08-12 11:40 UTCGHSA enrichment
  9. 2026-08-11 23:07 UTCEG score recompute
  10. 2026-08-11 23:07 UTCGHSA enrichment
  11. 2026-08-11 13:42 UTCEPSS rescore
  12. 2026-08-11 10:34 UTCEG score recompute
  13. 2026-08-11 10:34 UTCGHSA enrichment
  14. 2026-08-10 23:59 UTCEPSS rescore
  15. 2026-08-10 22:00 UTCGHSA enrichment
  16. 2026-08-10 09:27 UTCGHSA enrichment
  17. 2026-08-09 20:54 UTCEG score recompute
  18. 2026-08-09 20:54 UTCGHSA enrichment
  19. 2026-08-09 13:46 UTCEPSS rescore
  20. 2026-08-09 08:22 UTCGHSA enrichment
  21. 2026-08-08 19:49 UTCEG score recompute
  22. 2026-08-08 19:49 UTCGHSA enrichment
  23. 2026-08-08 16:37 UTCEPSS rescore
  24. 2026-08-08 07:16 UTCGHSA enrichment
  25. 2026-08-07 18:43 UTCEG score recompute
  26. 2026-08-07 18:43 UTCGHSA enrichment
  27. 2026-08-07 06:10 UTCGHSA enrichment
  28. 2026-08-06 17:37 UTCEG score recompute
  29. 2026-08-06 17:37 UTCGHSA enrichment
  30. 2026-08-06 13:46 UTCEPSS rescore
  31. 2026-08-06 05:04 UTCEG score recompute
  32. 2026-08-06 05:04 UTCGHSA enrichment
  33. 2026-08-05 19:17 UTCEPSS rescore
  34. 2026-08-05 16:31 UTCGHSA enrichment
  35. 2026-08-05 16:11 UTCEG score recompute▲ 8.10
  36. 2026-08-05 16:11 UTCGHSA enrichment
  37. 2026-08-05 16:10 UTCMITRE cvelistV5CVSS v3 → 8.1 · severity → HIGH
  38. 2026-08-05 07:19 UTCNVD update
  39. 2026-08-05 06:20 UTCEG score recompute
  40. 2026-08-05 06:20 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-14553?
CVE-2026-14553 is a high vulnerability published on August 5, 2026. The zportals WordPress plugin before 6.3.4 does not properly validate uploaded files, trusting the client-supplied content type and preserving the original file extension, allowing any authenticated user (Subscriber or higher) to upload arbitrary PHP files and achieve remote code execution.
When was CVE-2026-14553 disclosed?
CVE-2026-14553 was first published in the National Vulnerability Database on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14553 actively exploited?
CVE-2026-14553 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 63.7% of all scored CVEs.
What is the CVSS score of CVE-2026-14553?
CVE-2026-14553 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-14553?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14553, 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-2026-14553

Explore →

Is Your Infrastructure Affected by CVE-2026-14553?

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

Start Free Scan →Browse All CVEs