CVE-2026-73533Known exploitationNetwork attack vector

Site takeover via tampered plugin update

Published Aug 13, 2026 · Updated Aug 13, 2026

Embedded malicious code in WPManageNinja Ninja Tables Pro 5.2.11 allows remote attackers to take control of WordPress sites via updates. The tampered build loads app/Library/updater/NinjaTableDataSync.php, which exposes a rogue REST endpoint, writes persistent PHP implants, creates passwordless administrator access, and schedules reinfection. Exposure requires installation of the build served during the compromised update window; the implants can persist after plugin removal and permit site and data access.

CVSS severity9.3
Critical
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Embedded malicious code in WPManageNinja Ninja Tables Pro 5.2.11 allows remote attackers to take control of WordPress sites via updates. The tampered build loads app/Library/updater/NinjaTableDataSync.php, which exposes a rogue REST endpoint, writes persistent PHP implants, creates passwordless administrator access, and schedules reinfection. Exposure requires installation of the build served during the compromised update window; the implants can persist after plugin removal and permit site and data access.

The record

CVE
CVE-2026-73533
Published
Aug 13, 2026
Updated
Aug 13, 2026
Vendor
Mahmudul Hasan Arif
Product
Ninja Tables Pro
Classifications
CWE-506, CAPEC-442, CAPEC-448, CAPEC-636, T1505.003, T1053.003, T1195.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 31, 2026Exploitation reportedMalicious build reached and acted on customer sites
  2. Aug 13, 2026CVE publishedPublication date reported by the CVE source.
  3. Aug 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.2.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mahmudul Hasan Arif · Ninja Tables Proversion=5.2.11

Published CVSS scores

9.8VulnCheck CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3VulnCheck CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-506Embedded Malicious Code
CAPEC-442Infected Software
CAPEC-448Embed Virus into DLL
CAPEC-636Hiding Malicious Data or Code within Files
T1505.003Web Shell
T1053.003Cron
T1195.002Compromise Software Supply Chain

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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