CVE-2026-16947

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-29. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: None knownExposed: 0

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

The Total processing card payments for WooCommerce WordPress plugin through 7.3 does not validate a user-supplied path before using it to build a server-side verification request, and does not verify the authenticity of the response, allowing unauthenticated attackers to redirect that request to an arbitrary host (disclosing the merchant's payment-gateway credentials) and to forge a success response that marks arbitrary WooCommerce orders as paid.

CVSS v3
9.1
EG Score
9.1(high)
EG Risk
56(Track)
EG Risk 56/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

August 29, 2026

Last Modified

August 31, 2026

Advisory Details (1)

Auto-updated Sep 15, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Total Processing Card Payments for WooCommerce <= 7.3 – Unauthenticated SSRF leading to Payment Bypass and Gateway Credential Disclosure | CVE 2026-16947 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/53fe46b3-e8c4-448e-aa80-b7fb02fffa51/

Vendor Advisories for CVE-2026-16947(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 51× in last 7d / 177× 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.

Showing the most recent 100 of 177 total refreshes for this CVE.

  1. 2026-09-21 01:36 UTCGHSA enrichment
  2. 2026-09-20 21:41 UTCEG score recompute
  3. 2026-09-20 21:41 UTCGHSA enrichment
  4. 2026-09-20 17:44 UTCGHSA enrichment
  5. 2026-09-20 13:48 UTCGHSA enrichment
  6. 2026-09-20 09:53 UTCGHSA enrichment
  7. 2026-09-20 05:56 UTCGHSA enrichment
  8. 2026-09-20 02:01 UTCGHSA enrichment
  9. 2026-09-19 22:06 UTCGHSA enrichment
  10. 2026-09-19 18:06 UTCEG score recompute
  11. 2026-09-19 18:06 UTCGHSA enrichment
  12. 2026-09-19 14:09 UTCGHSA enrichment
  13. 2026-09-19 10:00 UTCGHSA enrichment
  14. 2026-09-19 05:18 UTCGHSA enrichment
  15. 2026-09-19 01:22 UTCGHSA enrichment
  16. 2026-09-18 21:27 UTCEG score recompute
  17. 2026-09-18 21:27 UTCGHSA enrichment
  18. 2026-09-18 19:27 UTCEPSS rescore
  19. 2026-09-18 16:30 UTCGHSA enrichment
  20. 2026-09-18 12:31 UTCGHSA enrichment
  21. 2026-09-18 08:36 UTCGHSA enrichment
  22. 2026-09-18 04:40 UTCGHSA enrichment
  23. 2026-09-18 00:45 UTCGHSA enrichment
  24. 2026-09-17 20:50 UTCEG score recompute
  25. 2026-09-17 20:50 UTCGHSA enrichment
Show 75 more
  1. 2026-09-17 14:55 UTCGHSA enrichment
  2. 2026-09-17 10:59 UTCGHSA enrichment
  3. 2026-09-17 07:03 UTCGHSA enrichment
  4. 2026-09-17 03:08 UTCGHSA enrichment
  5. 2026-09-16 23:03 UTCGHSA enrichment
  6. 2026-09-16 19:06 UTCGHSA enrichment
  7. 2026-09-16 15:11 UTCEG score recompute
  8. 2026-09-16 15:11 UTCGHSA enrichment
  9. 2026-09-16 14:07 UTCEPSS rescore
  10. 2026-09-16 11:15 UTCGHSA enrichment
  11. 2026-09-16 07:20 UTCEG score recompute
  12. 2026-09-16 07:20 UTCGHSA enrichment
  13. 2026-09-16 05:14 UTCEPSS rescore
  14. 2026-09-16 03:24 UTCGHSA enrichment
  15. 2026-09-15 23:28 UTCGHSA enrichment
  16. 2026-09-15 19:03 UTCGHSA enrichment
  17. 2026-09-15 15:07 UTCGHSA enrichment
  18. 2026-09-15 11:04 UTCGHSA enrichment
  19. 2026-09-15 06:32 UTCEG score recompute
  20. 2026-09-15 06:32 UTCGHSA enrichment
  21. 2026-09-15 02:37 UTCGHSA enrichment
  22. 2026-09-14 22:41 UTCGHSA enrichment
  23. 2026-09-14 18:45 UTCGHSA enrichment
  24. 2026-09-14 14:33 UTCGHSA enrichment
  25. 2026-09-14 10:37 UTCGHSA enrichment
  26. 2026-09-14 06:41 UTCGHSA enrichment
  27. 2026-09-14 02:46 UTCGHSA enrichment
  28. 2026-09-13 22:50 UTCGHSA enrichment
  29. 2026-09-13 18:55 UTCEG score recompute
  30. 2026-09-13 18:55 UTCGHSA enrichment
  31. 2026-09-13 16:46 UTCEPSS rescore
  32. 2026-09-13 14:55 UTCGHSA enrichment
  33. 2026-09-13 10:54 UTCGHSA enrichment
  34. 2026-09-13 06:58 UTCGHSA enrichment
  35. 2026-09-13 03:03 UTCGHSA enrichment
  36. 2026-09-12 23:07 UTCGHSA enrichment
  37. 2026-09-12 19:12 UTCGHSA enrichment
  38. 2026-09-12 15:17 UTCEG score recompute
  39. 2026-09-12 15:17 UTCGHSA enrichment
  40. 2026-09-12 15:00 UTCEPSS rescore
  41. 2026-09-12 11:21 UTCGHSA enrichment
  42. 2026-09-12 07:26 UTCGHSA enrichment
  43. 2026-09-12 03:30 UTCGHSA enrichment
  44. 2026-09-11 23:35 UTCGHSA enrichment
  45. 2026-09-11 19:40 UTCGHSA enrichment
  46. 2026-09-11 15:44 UTCEG score recompute
  47. 2026-09-11 15:44 UTCGHSA enrichment
  48. 2026-09-11 14:52 UTCEPSS rescore
  49. 2026-09-11 11:48 UTCEG score recompute
  50. 2026-09-11 11:48 UTCGHSA enrichment
  51. 2026-09-11 09:36 UTCEPSS rescore
  52. 2026-09-11 07:49 UTCGHSA enrichment
  53. 2026-09-11 03:53 UTCGHSA enrichment
  54. 2026-09-10 23:57 UTCGHSA enrichment
  55. 2026-09-10 19:36 UTCGHSA enrichment
  56. 2026-09-10 15:41 UTCGHSA enrichment
  57. 2026-09-10 11:45 UTCEG score recompute
  58. 2026-09-10 11:45 UTCGHSA enrichment
  59. 2026-09-10 09:34 UTCEPSS rescore
  60. 2026-09-10 07:42 UTCGHSA enrichment
  61. 2026-09-10 03:47 UTCGHSA enrichment
  62. 2026-09-09 23:52 UTCGHSA enrichment
  63. 2026-09-09 16:57 UTCGHSA enrichment
  64. 2026-09-09 12:12 UTCGHSA enrichment
  65. 2026-09-09 08:16 UTCGHSA enrichment
  66. 2026-09-09 04:20 UTCGHSA enrichment
  67. 2026-09-09 00:25 UTCEG score recompute
  68. 2026-09-09 00:25 UTCGHSA enrichment
  69. 2026-09-08 22:00 UTCEPSS rescore
  70. 2026-09-08 11:06 UTCGHSA enrichment
  71. 2026-09-08 06:43 UTCGHSA enrichment
  72. 2026-09-08 02:47 UTCGHSA enrichment
  73. 2026-09-07 22:52 UTCGHSA enrichment
  74. 2026-09-07 18:56 UTCEG score recompute
  75. 2026-09-07 18:56 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16947?
CVE-2026-16947 is a critical vulnerability published on August 29, 2026. The Total processing card payments for WooCommerce WordPress plugin through 7.3 does not validate a user-supplied path before using it to build a server-side verification request, and does not verify the authenticity of the response, allowing unauthenticated attackers to redirect that request to an…
When was CVE-2026-16947 disclosed?
CVE-2026-16947 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-2026-16947 actively exploited?
CVE-2026-16947 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 84.6% of all scored CVEs.
What is the CVSS score of CVE-2026-16947?
CVE-2026-16947 has a CVSS v3.1 base score of 9.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-16947?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16947, 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.

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