CVE-2026-81543

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-05. 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.

The Abandoned Cart Pro for WooCommerce plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 10.7.1. This is due to missing capability checks and nonce verification on multiple AJAX actions including wcap_save_connector_settings, wcap_send_manual_email, wcap_abandoned_cart_info, and wcap_change_manual_email_data. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify SMTP connector settings to route administrator recovery emails through an attacker-controlled server and intercept auto-login links to gain full administrative access. The plugin's auto-login feature must be enabled, which is the default configuration.

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
36%
KEV
Not listed

Published

September 5, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Sep 5, 2026
No patch confirmed yet.
generic

Abandoned Cart Pro - WooCommerce Marketplace

https://woocommerce.com/products/abandoned-cart-pro/

Vendor Advisories for CVE-2026-81543(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 26× in last 7d / 76× 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. 2026-09-25 03:12 UTCGHSA enrichment
  2. 2026-09-24 14:22 UTCEG score recompute
  3. 2026-09-24 14:22 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 01:19 UTCEG score recompute
  6. 2026-09-24 01:19 UTCGHSA enrichment
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-23 12:35 UTCGHSA enrichment
  9. 2026-09-22 23:51 UTCEG score recompute
  10. 2026-09-22 23:51 UTCGHSA enrichment
  11. 2026-09-22 16:01 UTCEPSS rescore
  12. 2026-09-22 11:06 UTCGHSA enrichment
  13. 2026-09-21 22:22 UTCEG score recompute
  14. 2026-09-21 22:21 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 09:36 UTCGHSA enrichment
  17. 2026-09-20 20:52 UTCEG score recompute
  18. 2026-09-20 20:52 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 08:08 UTCGHSA enrichment
  21. 2026-09-19 18:41 UTCEG score recompute
  22. 2026-09-19 18:41 UTCGHSA enrichment
  23. 2026-09-19 05:56 UTCEG score recompute
  24. 2026-09-19 05:56 UTCGHSA enrichment
  25. 2026-09-18 19:28 UTCEPSS rescore
Show 51 more
  1. 2026-09-18 17:12 UTCGHSA enrichment
  2. 2026-09-18 04:28 UTCEG score recompute
  3. 2026-09-18 04:28 UTCGHSA enrichment
  4. 2026-09-17 15:44 UTCGHSA enrichment
  5. 2026-09-17 02:59 UTCEG score recompute
  6. 2026-09-17 02:59 UTCGHSA enrichment
  7. 2026-09-16 14:08 UTCEPSS rescore
  8. 2026-09-16 13:56 UTCEG score recompute
  9. 2026-09-16 13:56 UTCGHSA enrichment
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-16 01:00 UTCGHSA enrichment
  12. 2026-09-15 12:16 UTCEG score recompute
  13. 2026-09-15 12:15 UTCGHSA enrichment
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-14 23:31 UTCGHSA enrichment
  17. 2026-09-14 10:27 UTCGHSA enrichment
  18. 2026-09-13 21:43 UTCEG score recompute
  19. 2026-09-13 21:43 UTCGHSA enrichment
  20. 2026-09-13 08:58 UTCGHSA enrichment
  21. 2026-09-12 20:14 UTCEG score recompute
  22. 2026-09-12 20:14 UTCGHSA enrichment
  23. 2026-09-12 07:30 UTCGHSA enrichment
  24. 2026-09-11 18:45 UTCEG score recompute
  25. 2026-09-11 18:45 UTCGHSA enrichment
  26. 2026-09-11 14:53 UTCEPSS rescore
  27. 2026-09-11 14:53 UTCEPSS rescore
  28. 2026-09-11 06:01 UTCGHSA enrichment
  29. 2026-09-10 17:16 UTCEG score recompute
  30. 2026-09-10 17:16 UTCGHSA enrichment
  31. 2026-09-10 04:29 UTCGHSA enrichment
  32. 2026-09-09 15:44 UTCGHSA enrichment
  33. 2026-09-09 02:59 UTCEG score recompute
  34. 2026-09-09 02:59 UTCGHSA enrichment
  35. 2026-09-08 22:01 UTCEPSS rescore
  36. 2026-09-08 14:15 UTCGHSA enrichment
  37. 2026-09-08 01:09 UTCEG score recompute
  38. 2026-09-08 01:09 UTCGHSA enrichment
  39. 2026-09-07 12:24 UTCEG score recompute
  40. 2026-09-07 12:23 UTCGHSA enrichment
  41. 2026-09-07 11:23 UTCGHSA enrichment
  42. 2026-09-06 22:37 UTCEG score recompute
  43. 2026-09-06 22:37 UTCGHSA enrichment
  44. 2026-09-06 13:48 UTCEPSS rescore
  45. 2026-09-06 09:53 UTCGHSA enrichment
  46. 2026-09-05 21:09 UTCEG score recompute
  47. 2026-09-05 21:09 UTCGHSA enrichment
  48. 2026-09-05 15:31 UTCEPSS rescore
  49. 2026-09-05 08:24 UTCEG score recompute
  50. 2026-09-05 07:44 UTCEG score recompute
  51. 2026-09-05 07:43 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81543?
CVE-2026-81543 is a high vulnerability published on September 5, 2026. The Abandoned Cart Pro for WooCommerce plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 10.7.1. This is due to missing capability checks and nonce verification on multiple AJAX actions including wcapsaveconnectorsettings, wcapsendmanualemail,…
When was CVE-2026-81543 disclosed?
CVE-2026-81543 was first published in the National Vulnerability Database on September 5, 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-2026-81543 actively exploited?
CVE-2026-81543 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 64.3% of all scored CVEs.
What is the CVSS score of CVE-2026-81543?
CVE-2026-81543 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-81543?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81543, 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-2026-81543

Explore →

Is Your Infrastructure Affected by CVE-2026-81543?

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

Book a Demo →Browse All CVEs