What’s Vulnerable › Vulnerabilities

CVE-2026-73533: Ninja Tables Pro 5.2.11 Embedded Malicious Code via Tampered Plugin Build

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-13 · updated 2026-09-09
• Weakness: CWE-506

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.

Affected products

• WPManageNinja Ninja Tables Pro: 5.2.11

References

• https://wordpress.org/plugins/ninja-tables/
• https://wpmanageninja.com/security-incident-on-31-july-2026/
• https://www.vulncheck.com/advisories/ninja-tables-pro-embedded-malicious-code-via-tampered-plugin-build

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