CVE-2026-73533

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-13. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

Ninja Tables Pro 5.2.11 contains an embedded malicious code vulnerability introduced via a tampered plugin build served through a decommissioned update server. The tampered build introduced a rogue PHP file (app/Library/updater/NinjaTableDataSync.php) that established a backdoor REST API endpoint, dropped persistent PHP files in mu-plugins and uploads directories, installed a passwordless administrator account, and registered scheduled tasks that survived plugin removal.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
38%
KEV
Not listed

Published

August 13, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

Ninja Tables Pro 5.2.11 Embedded Malicious Code via Tampered Plugin Build | Advisories | VulnCheck

https://www.vulncheck.com/advisories/ninja-tables-pro-embedded-malicious-code-via-tampered-plugin-build
generic

WPManageNinja Security Incident: July 31, 2026

https://wpmanageninja.com/security-incident-on-31-july-2026/
generic

Ninja Tables – Easy Data Table Builder – WordPress plugin | WordPress.org

https://wordpress.org/plugins/ninja-tables/

Vendor Advisories for CVE-2026-73533(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 48× in last 7d / 200× 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 257 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-73533?
CVE-2026-73533 is a critical vulnerability published on August 13, 2026. Ninja Tables Pro 5.2.11 contains an embedded malicious code vulnerability introduced via a tampered plugin build served through a decommissioned update server. The tampered build introduced a rogue PHP file (app/Library/updater/NinjaTableDataSync.php) that established a backdoor REST API endpoint,…
When was CVE-2026-73533 disclosed?
CVE-2026-73533 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73533 actively exploited?
CVE-2026-73533 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 61.7% of all scored CVEs.
What is the CVSS score of CVE-2026-73533?
CVE-2026-73533 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-73533?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73533, 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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