CVE-2026-73533 (GCVE-0-2026-73533)

Vulnerability from cvelistv5 – Published: 2026-08-13 16:00 – Updated: 2026-08-14 16:52 X_Known Exploited Vulnerability
VLAI KEVIntel
Title
Ninja Tables Pro 5.2.11 Embedded Malicious Code via Tampered Plugin Build
Summary
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.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-506 - Embedded Malicious Code
Assigner
References
Impacted products
Vendor Product Version
WPManageNinja Ninja Tables Pro Affected: 5.2.11 (semver)
Create a notification for this product.
Date Public
2026-08-01 00:00
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: cbf5a559-f92a-4d19-98ee-1b39c8c9d418

Vulnerability ID: CVE-2026-73533

Status: Confirmed

Status Updated: 2026-08-14 17:13 UTC

Exploited: Yes

Timestamps
First Seen: 2026-08-14
Asserted: 2026-08-14
Scope
Notes: Ninja Tables Pro 5.2.11 Embedded Malicious Code via Tampered Plugin Build | Affected: WPManageNinja / Ninja Tables Pro | CVSS: 9.3 (CRITICAL) | EPSS: 0.00448 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Ninja Tables Pro 5.2.11 Embedded Malicious Code via Tampered Plugin Build
Vendor WPManageNinja
Product Ninja Tables Pro
Added Date 2026-08-14T17:13:03.486Z
Cvss Score 9.3
Epss Score 0.00448
Cvss Severity CRITICAL
Epss Percentile 0.37123
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-08-14 18:00 UTC | Updated: 2026-08-14 18:00 UTC
Show details on NVD website
To clipboard 

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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.