Ninja Tables Pro 5.2.11 Embedded Malicious Code via Tampered Plugin Build (CVE-2026-73533) | HOL Guard CVE

Critical · CVSS 9.8CVE-2026-73533

Ninja Tables Pro 5.2.11 Embedded Malicious Code via Tampered Plugin Build

Answer in brief

CVE-2026-73533 records a Critical severity (CVSS 9.8) vulnerability in Ninja Tables Pro 5.2.11 Embedded Malicious Code via Tampered Plugin Build. The current sources do not mark it as known exploited. The current feed maps WPManageNinja/Ninja Tables Pro (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 13, 2026Updated Sep 9, 2026Source checked Sep 27, 2026First seen by HOL Aug 13, 2026Material review Sep 9, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.8
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps WPManageNinja/Ninja Tables Pro (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
WPManageNinja/Ninja Tables Progeneric	5.2.11	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for WPManageNinja/Ninja Tables Pro.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 13, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 9, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 13, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.