CVE-2026-57623Network attack vector

Unauthenticated arbitrary code execution

Published Jul 2, 2026 · Updated Jul 2, 2026

Code injection in BoldGrid W3 Total Cache 2.9.4 and earlier allows remote attackers to execute arbitrary code on WordPress servers. Neither Patchstack nor BoldGrid identifies the vulnerable endpoint, input, function, or validation failure that enables code execution. No account or user interaction is required; the additional conditions needed to reach the vulnerable code are not disclosed.

CVSS severity9.0
Critical
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in BoldGrid W3 Total Cache 2.9.4 and earlier allows remote attackers to execute arbitrary code on WordPress servers. Neither Patchstack nor BoldGrid identifies the vulnerable endpoint, input, function, or validation failure that enables code execution. No account or user interaction is required; the additional conditions needed to reach the vulnerable code are not disclosed.

The record

CVE
CVE-2026-57623
Published
Jul 2, 2026
Updated
Jul 2, 2026
Vendor
Web Ventures
Product
W3 Total Cache
Classifications
CWE-1284, CAPEC-1, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=n/a <=2.9.4 changes=[{"at":"2.10.0","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Web Ventures · W3 Total Cacheversion=n/a <=2.9.4 changes=[{"at":"2.10.0","status":"unaffected"}]

Published CVSS scores

9.0PatchstackCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

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 exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1284Improper Validation of Specified Quantity in Input
CAPEC-1Accessing Functionality Not Properly Constrained by ACLs
T1190Exploit Public-Facing Application

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.

Technologies

Your stack

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Your stack

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