CVE-2026-81283

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-02. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

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

Subscriber PHP Object Injection in WP User Frontend <= 4.3.10 versions.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
41%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 2, 2026

Advisory Details (1)

Auto-updated Sep 2, 2026
No patch confirmed yet.
generic

PHP Object Injection in WordPress WP User Frontend Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/wp-user-frontend/vulnerability/wordpress-wp-user-frontend-plugin-4-3-10-php-object-injection-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-81283(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 28× in last 7d / 77× 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 06:53 UTCEG score recompute
  2. 2026-09-21 06:53 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 19:41 UTCGHSA enrichment
  5. 2026-09-20 08:29 UTCGHSA enrichment
  6. 2026-09-19 21:11 UTCEG score recompute
  7. 2026-09-19 21:11 UTCGHSA enrichment
  8. 2026-09-19 09:57 UTCGHSA enrichment
  9. 2026-09-18 22:37 UTCEG score recompute
  10. 2026-09-18 22:37 UTCGHSA enrichment
  11. 2026-09-18 19:28 UTCEPSS rescore
  12. 2026-09-18 11:26 UTCGHSA enrichment
  13. 2026-09-18 00:14 UTCEG score recompute
  14. 2026-09-18 00:14 UTCGHSA enrichment
  15. 2026-09-17 13:02 UTCGHSA enrichment
  16. 2026-09-17 01:14 UTCEG score recompute
  17. 2026-09-17 01:14 UTCGHSA enrichment
  18. 2026-09-16 14:08 UTCEPSS rescore
  19. 2026-09-16 14:01 UTCEG score recompute
  20. 2026-09-16 14:01 UTCGHSA enrichment
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-16 02:17 UTCGHSA enrichment
  23. 2026-09-15 15:05 UTCGHSA enrichment
  24. 2026-09-15 03:41 UTCEG score recompute
  25. 2026-09-15 03:40 UTCGHSA enrichment
Show 52 more
  1. 2026-09-15 03:12 UTCEPSS rescore
  2. 2026-09-15 03:12 UTCEPSS rescore
  3. 2026-09-14 16:28 UTCGHSA enrichment
  4. 2026-09-14 05:15 UTCGHSA enrichment
  5. 2026-09-13 18:03 UTCEG score recompute
  6. 2026-09-13 18:03 UTCGHSA enrichment
  7. 2026-09-13 06:51 UTCGHSA enrichment
  8. 2026-09-12 19:30 UTCEG score recompute
  9. 2026-09-12 19:30 UTCGHSA enrichment
  10. 2026-09-12 08:17 UTCGHSA enrichment
  11. 2026-09-11 21:05 UTCEG score recompute
  12. 2026-09-11 21:05 UTCGHSA enrichment
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 09:53 UTCEG score recompute
  16. 2026-09-11 09:53 UTCGHSA enrichment
  17. 2026-09-10 22:40 UTCGHSA enrichment
  18. 2026-09-10 11:28 UTCEG score recompute
  19. 2026-09-10 11:27 UTCGHSA enrichment
  20. 2026-09-09 23:32 UTCGHSA enrichment
  21. 2026-09-09 10:31 UTCGHSA enrichment
  22. 2026-09-08 23:14 UTCEG score recompute
  23. 2026-09-08 23:14 UTCGHSA enrichment
  24. 2026-09-08 22:01 UTCEPSS rescore
  25. 2026-09-08 04:47 UTCGHSA enrichment
  26. 2026-09-07 17:34 UTCEG score recompute
  27. 2026-09-07 17:34 UTCGHSA enrichment
  28. 2026-09-07 06:22 UTCGHSA enrichment
  29. 2026-09-06 19:08 UTCEG score recompute
  30. 2026-09-06 19:07 UTCGHSA enrichment
  31. 2026-09-06 13:48 UTCEPSS rescore
  32. 2026-09-06 07:52 UTCGHSA enrichment
  33. 2026-09-05 20:40 UTCEG score recompute
  34. 2026-09-05 20:40 UTCGHSA enrichment
  35. 2026-09-05 15:31 UTCEPSS rescore
  36. 2026-09-05 09:28 UTCGHSA enrichment
  37. 2026-09-04 22:16 UTCEG score recompute
  38. 2026-09-04 22:16 UTCGHSA enrichment
  39. 2026-09-04 11:04 UTCEG score recompute
  40. 2026-09-04 11:04 UTCGHSA enrichment
  41. 2026-09-04 05:07 UTCEPSS rescore
  42. 2026-09-03 23:49 UTCGHSA enrichment
  43. 2026-09-03 12:37 UTCGHSA enrichment
  44. 2026-09-03 01:24 UTCGHSA enrichment
  45. 2026-09-02 14:11 UTCGHSA enrichment
  46. 2026-09-02 13:33 UTCEG score recompute
  47. 2026-09-02 13:32 UTCGHSA enrichment
  48. 2026-09-02 12:56 UTCEG score recompute
  49. 2026-09-02 12:56 UTCGHSA enrichment
  50. 2026-09-02 12:25 UTCEG score recompute
  51. 2026-09-02 11:39 UTCEG score recompute
  52. 2026-09-02 11:38 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81283?
CVE-2026-81283 is a high vulnerability published on September 2, 2026. Subscriber PHP Object Injection in WP User Frontend <= 4.3.10 versions.
When was CVE-2026-81283 disclosed?
CVE-2026-81283 was first published in the National Vulnerability Database on September 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81283 actively exploited?
CVE-2026-81283 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 59.3% of all scored CVEs.
What is the CVSS score of CVE-2026-81283?
CVE-2026-81283 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-81283?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81283, 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-2026-81283

Explore →

Is Your Infrastructure Affected by CVE-2026-81283?

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

Start Free Scan →Browse All CVEs