Skip to main content

Ninja Tables Pro EUVDEUVD-2026-58112

| CVE-2026-73533 CRITICAL
Embedded Malicious Code (CWE-506)
2026-08-13 disclosure@vulncheck.com GHSA-7wc4-82pm-hqcg
PHP Information Disclosure
9.3
CVSS 4.0 · Vendor: vulncheck
Share

Severity by source

Vendor (vulncheck) PRIMARY
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
9.8 CRITICAL

Embedded backdoor exposes an unauthenticated network-reachable REST endpoint and passwordless admin, giving full C/I/A impact with no privileges or interaction once the tampered build is installed.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (vulncheck).

CVSS VectorVendor: vulncheck

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
Analysis Generated
Aug 13, 2026 - 16:36 vuln.today
CVE Published
Aug 13, 2026 - 16:19 cve.org
CRITICAL 9.3

DescriptionCVE.org

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.

Articles & Coverage 1

News Critical Supply Chain Backdoor in Ninja Tables Pro WordPress Plugin - CVE-2026-73533 Aug 14, 2026

AnalysisAI

Supply-chain compromise of the Ninja Tables Pro WordPress plugin (version 5.2.11) delivered a tampered build through a decommissioned vendor update server, embedding a backdoor that gives attackers full control of affected WordPress sites. Once installed, the rogue code stands up an unauthenticated REST API endpoint, plants a passwordless administrator account, and drops persistent PHP payloads that survive plugin removal. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts
Continue with Google Continue with GitHub

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Tampered plugin build served via rogue update server
Delivery
Admin installs Ninja Tables Pro 5.2.11
Exploit
Backdoor plants mu-plugins, uploads payloads, admin account
Execution
Attacker calls unauthenticated REST endpoint
Persist
Execute PHP as web server, exfiltrate database
Impact
Persist via cron surviving plugin removal
Sign in to reveal

Vulnerability AssessmentAI

Exploitation Exploitation requires that the victim installed the specific tampered Ninja Tables Pro 5.2.11 build delivered from the decommissioned vendor update server during the compromise window - the legitimate build is not affected, so this is the primary limiting factor. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a high-priority, real-world risk rather than a theoretical high-CVSS issue. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A site administrator updated or installed Ninja Tables Pro 5.2.11 while the vendor's now-decommissioned update server was serving the tampered build, silently installing the backdoor. An attacker then sends an unauthenticated request to the rogue REST API endpoint (or logs in via the planted passwordless admin account) to execute PHP, exfiltrate the database, and maintain persistence through mu-plugins and cron even after the plugin is removed. …
Remediation Treat any site that installed the tampered Ninja Tables Pro 5.2.11 as fully compromised and perform incident response rather than a simple update - patching the plugin alone is insufficient because the backdoor persists outside the plugin directory. … Detailed patch versions, workarounds, and compensating controls in full report.
Sign in to read full assessment

Recommended ActionAI

Within 24 hours: Audit WordPress inventory to identify all instances running Ninja Tables Pro version 5.2.11, and review access logs and admin account listings for suspicious activity indicative of backdoor activation. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

More in PHP

View all
CVE-2019-11043 CRITICAL POC
9.8 Oct 28

In PHP versions 7.1.x below 7.1.33, 7.2.x below 7.2.24 and 7.3.x below 7.3.11 in certain configurations of FPM setup it

CVE-2012-1823 CRITICAL POC
9.8 May 11

sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI script (aka php-cgi), does not
CVE-2016-1555 CRITICAL POC
9.8 Apr 21

(1) boardData102.php, (2) boardData103.php, (3) boardDataJP.php, (4) boardDataNA.php, and (5) boardDataWW.php in Netgear
CVE-2018-11138 CRITICAL POC
9.8 May 31

The '/common/download_agent_installer.php' script in the Quest KACE System Management Appliance 8.0.318 is accessible by
CVE-2024-11680 CRITICAL POC
9.8 Nov 26

ProjectSend versions prior to r1720 are affected by an improper authentication vulnerability. Rated critical severity (C
CVE-2025-49113 CRITICAL POC
9.9 Jun 02

Roundcube Webmail contains a critical PHP object deserialization vulnerability (CVE-2025-49113, CVSS 9.9) that allows au
CVE-2017-9841 CRITICAL POC
9.8 Jun 27

Util/PHP/eval-stdin.php in PHPUnit before 4.8.28 and 5.x before 5.6.3 allows remote attackers to execute arbitrary PHP c
CVE-2025-0108 HIGH POC
8.8 Feb 12

Palo Alto Networks PAN-OS management web interface contains an authentication bypass allowing unauthenticated attackers

CVE-2021-25298 HIGH POC
8.8 Feb 15

Nagios XI version xi-5.7.5 is affected by OS command injection. Rated high severity (CVSS 8.8), this vulnerability is re
CVE-2021-25296 HIGH POC
8.8 Feb 15

Nagios XI version xi-5.7.5 is affected by OS command injection. Rated high severity (CVSS 8.8), this vulnerability is re
CVE-2013-4983 CRITICAL POC
10.0 Sep 10

The get_referers function in /opt/ws/bin/sblistpack in Sophos Web Appliance before 3.7.9.1 and 3.8 before 3.8.1.1 allows
CVE-2023-6553 CRITICAL POC
9.8 Dec 15

The Backup Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1

Same weakness CWE-506 – Embedded Malicious Code

View all
CVE-2025-30066 HIGH POC
8.6
CVE-2026-45321 CRITICAL POC
9.6
CVE-2026-33634 CRITICAL POC
9.4
CVE-2026-8398 CRITICAL POC
9.3
CVE-2026-48027 CRITICAL POC
9.3
CVE-2026-74232 CRITICAL POC
9.3
CVE-2020-15165 CRITICAL POC
9.1
CVE-2024-4978 HIGH POC
8.7

Same technique Information Disclosure

View all
CVE-2019-2725 CRITICAL POC
9.8
CVE-2021-34523 CRITICAL POC
9.0
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5
CVE-2014-6324 HIGH POC
8.8

Share

EUVD-2026-58112 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy