CVE-2026-6433Network attack vector

Unauthenticated PHP execution via SQL-fed eval

Published May 11, 2026 · Updated May 11, 2026

Code injection in Flipper Code Custom CSS-JS-PHP 2.0.7 and earlier allows remote attackers to execute arbitrary PHP code. The plugin uses unsanitized request input in a SQL query and passes the resulting database value to eval(), which interprets attacker-controlled text as PHP. No authentication or user interaction is required; execution runs with the WordPress PHP process's permissions and can read or modify site data.

CVSS severity7.3
High
EPSS probability1.20%
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 Flipper Code Custom CSS-JS-PHP 2.0.7 and earlier allows remote attackers to execute arbitrary PHP code. The plugin uses unsanitized request input in a SQL query and passes the resulting database value to eval(), which interprets attacker-controlled text as PHP. No authentication or user interaction is required; execution runs with the WordPress PHP process's permissions and can read or modify site data.

The record

CVE
CVE-2026-6433
Published
May 11, 2026
Updated
May 11, 2026
Vendor
Flipper Code
Product
Custom CSS-JS-PHP
Classifications
CWE-94, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2026CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=2.0.7 <=2.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Flipper Code · Custom CSS-JS-PHPversion=2.0.7 <=2.0.7

Published CVSS scores

7.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

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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