CVE-2026-9857

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-07-10. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

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

The Invoice123 plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.7.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to overwrite the plugin's API key stored in wp_options, modify invoice plugin settings, and alter WooCommerce tax rate data in the wp_woocommerce_tax_rates table.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
20(Track)
EG Risk 20/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 10, 2026

References (12)

Vendor Advisories for CVE-2026-9857(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 18× in last 7d / 81× 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 120 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9857?
CVE-2026-9857 is a medium vulnerability published on July 10, 2026. The Invoice123 plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.7.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access…
When was CVE-2026-9857 disclosed?
CVE-2026-9857 was first published in the National Vulnerability Database on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9857 actively exploited?
CVE-2026-9857 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 61.1% of all scored CVEs.
What is the CVSS score of CVE-2026-9857?
CVE-2026-9857 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-9857?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9857, 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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