CVE-2026-76547

MEDIUMPre-NVD 6.66.6—
EchelonGraph scoreHIGH confidence

Score 6.6 from GitHub Security Advisory published 2026-08-29. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
6.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.6Exploit: None knownExposed: 0

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

The User Profile Builder WordPress plugin before 4.0.1 does not validate the type of data being deserialized when importing a configuration file, allowing high privilege users such as administrators to conduct PHP Object Injection. The affected feature is a free add-on which is disabled by default, and no POP chain is present in the User Profile Builder WordPress plugin before 4.0.1 itself, so further impact requires a suitable gadget from another installed User Profile Builder WordPress plugin before 4.0.1 or .

CVSS v3
6.6
EG Score
6.6(high)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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
Severity66% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

August 29, 2026

Last Modified

August 31, 2026

Advisory Details (1)

Auto-updated Aug 30, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Profile Builder < 4.0.1 – Admin+ PHP Object Injection via Import/Export | CVE 2026-76547 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/b80151f4-e910-4263-9ecc-470fb39d7583/

Vendor Advisories for CVE-2026-76547(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 19× in last 7d / 69× 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. 2026-09-21 07:32 UTCEG score recompute
  2. 2026-09-21 07:32 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 09:03 UTCEG score recompute
  5. 2026-09-20 09:03 UTCGHSA enrichment
  6. 2026-09-19 10:45 UTCEG score recompute
  7. 2026-09-19 10:45 UTCGHSA enrichment
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 12:24 UTCEG score recompute
  10. 2026-09-18 12:24 UTCGHSA enrichment
  11. 2026-09-17 14:03 UTCGHSA enrichment
  12. 2026-09-16 15:45 UTCEG score recompute
  13. 2026-09-16 15:45 UTCGHSA enrichment
  14. 2026-09-16 14:08 UTCEPSS rescore
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-15 17:27 UTCEG score recompute
  17. 2026-09-15 17:27 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-14 19:09 UTCGHSA enrichment
  20. 2026-09-13 20:51 UTCEG score recompute
  21. 2026-09-13 20:51 UTCGHSA enrichment
  22. 2026-09-12 22:33 UTCEG score recompute
  23. 2026-09-12 22:33 UTCGHSA enrichment
  24. 2026-09-12 15:02 UTCEPSS rescore
  25. 2026-09-12 00:15 UTCEG score recompute
Show 44 more
  1. 2026-09-12 00:14 UTCGHSA enrichment
  2. 2026-09-11 14:53 UTCEPSS rescore
  3. 2026-09-11 01:55 UTCEG score recompute
  4. 2026-09-11 01:55 UTCGHSA enrichment
  5. 2026-09-10 09:35 UTCEPSS rescore
  6. 2026-09-10 03:37 UTCGHSA enrichment
  7. 2026-09-09 05:20 UTCEG score recompute
  8. 2026-09-09 05:19 UTCGHSA enrichment
  9. 2026-09-08 22:01 UTCEPSS rescore
  10. 2026-09-08 07:02 UTCEG score recompute
  11. 2026-09-08 07:01 UTCGHSA enrichment
  12. 2026-09-07 08:43 UTCEG score recompute
  13. 2026-09-07 08:43 UTCGHSA enrichment
  14. 2026-09-06 13:48 UTCEPSS rescore
  15. 2026-09-06 10:20 UTCEG score recompute
  16. 2026-09-06 10:20 UTCGHSA enrichment
  17. 2026-09-05 12:03 UTCEG score recompute
  18. 2026-09-05 12:03 UTCGHSA enrichment
  19. 2026-09-04 13:42 UTCEG score recompute
  20. 2026-09-04 13:42 UTCGHSA enrichment
  21. 2026-09-04 05:07 UTCEPSS rescore
  22. 2026-09-03 15:22 UTCGHSA enrichment
  23. 2026-09-02 17:02 UTCEG score recompute
  24. 2026-09-02 17:02 UTCGHSA enrichment
  25. 2026-09-02 14:12 UTCEPSS rescore
  26. 2026-09-01 18:41 UTCEG score recompute
  27. 2026-09-01 18:41 UTCGHSA enrichment
  28. 2026-09-01 13:54 UTCEPSS rescore
  29. 2026-09-01 04:40 UTCEPSS rescore
  30. 2026-09-01 04:40 UTCEPSS rescore
  31. 2026-08-31 20:22 UTCGHSA enrichment
  32. 2026-08-30 23:47 UTCEG score recompute
  33. 2026-08-30 23:47 UTCGHSA enrichment
  34. 2026-08-30 19:18 UTCEPSS rescore
  35. 2026-08-30 19:17 UTCEPSS rescore
  36. 2026-08-30 01:29 UTCEG score recompute
  37. 2026-08-30 01:29 UTCGHSA enrichment
  38. 2026-08-30 01:22 UTCEPSS rescore
  39. 2026-08-30 01:08 UTCEG score recompute▲ 6.60
  40. 2026-08-30 01:08 UTCGHSA enrichment
  41. 2026-08-30 01:08 UTCMITRE cvelistV5CVSS v3 → 6.6 · severity → MEDIUM
  42. 2026-08-29 06:21 UTCNVD update
  43. 2026-08-29 06:13 UTCEG score recompute
  44. 2026-08-29 06:12 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-76547?
CVE-2026-76547 is a medium vulnerability published on August 29, 2026. The User Profile Builder WordPress plugin before 4.0.1 does not validate the type of data being deserialized when importing a configuration file, allowing high privilege users such as administrators to conduct PHP Object Injection. The affected feature is a free add-on which is disabled by default,…
When was CVE-2026-76547 disclosed?
CVE-2026-76547 was first published in the National Vulnerability Database on August 29, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76547 actively exploited?
CVE-2026-76547 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 83.8% of all scored CVEs.
What is the CVSS score of CVE-2026-76547?
CVE-2026-76547 has a CVSS v3.1 base score of 6.6 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-76547?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76547, 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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