CVE-2026-66047

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-31. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: None knownExposed: 0

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

ProfilePress (wp-user-avatar) WordPress plugin before 4.17.2 contains an unauthenticated remote code execution vulnerability that allows unauthenticated attackers to install and activate arbitrary plugins by brute-forcing a weak 32-bit connect token via the ppress_connect_process AJAX handler. Attackers can supply a caller-controlled URL through the file request parameter to trigger silent plugin installation and activation, achieving PHP code execution as the web-server user.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

August 31, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Aug 31, 2026
No patch confirmed yet.
generic

ProfilePress WordPress Plugin < 4.17.2 Unauthenticated Arbitrary Plugin Installation RCE | Advisories | VulnCheck

https://www.vulncheck.com/advisories/profilepress-wordpress-plugin-unauthenticated-arbitrary-plugin-installation-rce
generic

Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress – WordPress plugin | WordPress.org

https://wordpress.org/plugins/wp-user-avatar/

Vendor Advisories for CVE-2026-66047(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 24× in last 7d / 72× 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. 2026-09-19 13:20 UTCGHSA enrichment
  2. 2026-09-19 01:16 UTCEG score recompute
  3. 2026-09-19 01:16 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 13:12 UTCGHSA enrichment
  6. 2026-09-18 01:08 UTCEG score recompute
  7. 2026-09-18 01:08 UTCGHSA enrichment
  8. 2026-09-17 13:03 UTCGHSA enrichment
  9. 2026-09-17 00:51 UTCEG score recompute
  10. 2026-09-17 00:51 UTCGHSA enrichment
  11. 2026-09-16 14:08 UTCEPSS rescore
  12. 2026-09-16 12:47 UTCEG score recompute
  13. 2026-09-16 12:47 UTCGHSA enrichment
  14. 2026-09-16 05:15 UTCEPSS rescore
  15. 2026-09-16 00:43 UTCGHSA enrichment
  16. 2026-09-15 12:34 UTCEG score recompute
  17. 2026-09-15 12:33 UTCGHSA enrichment
  18. 2026-09-15 00:28 UTCGHSA enrichment
  19. 2026-09-14 12:24 UTCGHSA enrichment
  20. 2026-09-14 00:20 UTCEG score recompute
  21. 2026-09-14 00:20 UTCGHSA enrichment
  22. 2026-09-13 12:16 UTCGHSA enrichment
  23. 2026-09-13 00:12 UTCEG score recompute
  24. 2026-09-13 00:12 UTCGHSA enrichment
  25. 2026-09-12 12:08 UTCGHSA enrichment
Show 47 more
  1. 2026-09-12 00:03 UTCEG score recompute
  2. 2026-09-12 00:03 UTCGHSA enrichment
  3. 2026-09-11 14:53 UTCEPSS rescore
  4. 2026-09-11 11:59 UTCEG score recompute
  5. 2026-09-11 11:59 UTCGHSA enrichment
  6. 2026-09-11 09:37 UTCEPSS rescore
  7. 2026-09-10 23:55 UTCGHSA enrichment
  8. 2026-09-10 11:50 UTCEG score recompute
  9. 2026-09-10 11:49 UTCGHSA enrichment
  10. 2026-09-09 23:44 UTCGHSA enrichment
  11. 2026-09-09 08:56 UTCEG score recompute
  12. 2026-09-09 08:56 UTCGHSA enrichment
  13. 2026-09-08 22:01 UTCEPSS rescore
  14. 2026-09-08 20:51 UTCGHSA enrichment
  15. 2026-09-08 03:41 UTCEG score recompute
  16. 2026-09-08 03:41 UTCGHSA enrichment
  17. 2026-09-07 16:01 UTCEPSS rescore
  18. 2026-09-07 15:36 UTCGHSA enrichment
  19. 2026-09-07 03:32 UTCGHSA enrichment
  20. 2026-09-06 15:24 UTCEG score recompute
  21. 2026-09-06 15:24 UTCGHSA enrichment
  22. 2026-09-06 13:47 UTCEPSS rescore
  23. 2026-09-06 03:20 UTCEG score recompute
  24. 2026-09-06 03:19 UTCGHSA enrichment
  25. 2026-09-05 15:31 UTCEPSS rescore
  26. 2026-09-05 15:14 UTCGHSA enrichment
  27. 2026-09-05 03:09 UTCGHSA enrichment
  28. 2026-09-04 15:03 UTCEG score recompute
  29. 2026-09-04 15:03 UTCGHSA enrichment
  30. 2026-09-04 05:07 UTCEPSS rescore
  31. 2026-09-04 02:58 UTCGHSA enrichment
  32. 2026-09-03 14:51 UTCGHSA enrichment
  33. 2026-09-03 02:41 UTCGHSA enrichment
  34. 2026-09-02 14:33 UTCEG score recompute
  35. 2026-09-02 14:33 UTCGHSA enrichment
  36. 2026-09-02 14:12 UTCEPSS rescore
  37. 2026-09-02 14:08 UTCEG score recompute
  38. 2026-09-02 14:08 UTCGHSA enrichment
  39. 2026-09-02 04:15 UTCGHSA enrichment
  40. 2026-09-01 16:07 UTCEG score recompute
  41. 2026-09-01 16:07 UTCGHSA enrichment
  42. 2026-09-01 13:54 UTCEPSS rescore
  43. 2026-09-01 03:39 UTCEG score recompute
  44. 2026-09-01 03:38 UTCGHSA enrichment
  45. 2026-08-31 15:22 UTCEG score recompute
  46. 2026-08-31 14:52 UTCEG score recompute
  47. 2026-08-31 14:49 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-66047?
CVE-2026-66047 is a high vulnerability published on August 31, 2026. ProfilePress (wp-user-avatar) WordPress plugin before 4.17.2 contains an unauthenticated remote code execution vulnerability that allows unauthenticated attackers to install and activate arbitrary plugins by brute-forcing a weak 32-bit connect token via the ppressconnectprocess AJAX handler.…
When was CVE-2026-66047 disclosed?
CVE-2026-66047 was first published in the National Vulnerability Database on August 31, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66047 actively exploited?
CVE-2026-66047 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 55.7% of all scored CVEs.
What is the CVSS score of CVE-2026-66047?
CVE-2026-66047 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-66047?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66047, 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

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