CVE-2026-66707

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-06. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

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

Unauthenticated Cross Site Scripting (XSS) in Facebook for WooCommerce <= 3.7.5 versions.

CVSS v3
7.1
EG Score
7.1(high)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 12, 2026

Advisory Details (1)

Auto-updated Aug 6, 2026
No patch confirmed yet.
generic

Cross Site Scripting (XSS) in WordPress Facebook for WooCommerce Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/facebook-for-woocommerce/vulnerability/wordpress-facebook-for-woocommerce-plugin-3-7-5-cross-site-scripting-xss-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-66707(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 / 59× 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 22:56 UTCEPSS rescore
  2. 2026-08-20 20:42 UTCGHSA enrichment
  3. 2026-08-20 08:04 UTCGHSA enrichment
  4. 2026-08-19 19:27 UTCEG score recompute
  5. 2026-08-19 19:27 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 06:49 UTCGHSA enrichment
  8. 2026-08-18 18:11 UTCEG score recompute
  9. 2026-08-18 18:11 UTCGHSA enrichment
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-18 03:30 UTCGHSA enrichment
  12. 2026-08-17 14:44 UTCEG score recompute
  13. 2026-08-17 14:44 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 02:07 UTCEG score recompute
  16. 2026-08-17 02:07 UTCGHSA enrichment
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 13:29 UTCEG score recompute
  19. 2026-08-16 13:29 UTCGHSA enrichment
  20. 2026-08-16 00:51 UTCGHSA enrichment
  21. 2026-08-15 12:13 UTCEG score recompute
  22. 2026-08-15 12:13 UTCGHSA enrichment
  23. 2026-08-15 01:30 UTCEPSS rescore
  24. 2026-08-14 23:35 UTCGHSA enrichment
  25. 2026-08-14 10:58 UTCGHSA enrichment
Show 34 more
  1. 2026-08-13 22:20 UTCEG score recompute
  2. 2026-08-13 22:20 UTCGHSA enrichment
  3. 2026-08-13 22:00 UTCEPSS rescore
  4. 2026-08-13 09:42 UTCGHSA enrichment
  5. 2026-08-12 21:05 UTCGHSA enrichment
  6. 2026-08-12 19:59 UTCEG score recompute
  7. 2026-08-12 19:59 UTCGHSA enrichment
  8. 2026-08-12 13:51 UTCEPSS rescore
  9. 2026-08-12 07:22 UTCGHSA enrichment
  10. 2026-08-11 18:43 UTCEG score recompute
  11. 2026-08-11 18:43 UTCGHSA enrichment
  12. 2026-08-11 06:06 UTCEG score recompute
  13. 2026-08-11 06:06 UTCGHSA enrichment
  14. 2026-08-11 00:00 UTCEPSS rescore
  15. 2026-08-10 17:28 UTCGHSA enrichment
  16. 2026-08-10 04:50 UTCGHSA enrichment
  17. 2026-08-09 16:13 UTCEG score recompute
  18. 2026-08-09 16:13 UTCGHSA enrichment
  19. 2026-08-09 13:47 UTCEPSS rescore
  20. 2026-08-09 03:35 UTCEG score recompute
  21. 2026-08-09 03:35 UTCGHSA enrichment
  22. 2026-08-08 16:37 UTCEPSS rescore
  23. 2026-08-08 14:58 UTCGHSA enrichment
  24. 2026-08-08 02:20 UTCEG score recompute
  25. 2026-08-08 02:20 UTCGHSA enrichment
  26. 2026-08-08 02:12 UTCEG score recompute
  27. 2026-08-08 02:12 UTCGHSA enrichment
  28. 2026-08-07 16:42 UTCEG score recompute
  29. 2026-08-07 16:42 UTCGHSA enrichment
  30. 2026-08-07 04:04 UTCEG score recompute
  31. 2026-08-07 04:04 UTCGHSA enrichment
  32. 2026-08-06 15:27 UTCEG score recompute
  33. 2026-08-06 14:42 UTCEG score recompute
  34. 2026-08-06 14:41 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-66707?
CVE-2026-66707 is a high vulnerability published on August 6, 2026. Unauthenticated Cross Site Scripting (XSS) in Facebook for WooCommerce <= 3.7.5 versions.
When was CVE-2026-66707 disclosed?
CVE-2026-66707 was first published in the National Vulnerability Database on August 6, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66707 actively exploited?
CVE-2026-66707 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 94.8% of all scored CVEs.
What is the CVSS score of CVE-2026-66707?
CVE-2026-66707 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-66707?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66707, 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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