CVE-2026-6433
Custom CSS JS PHP <= 2.0.7 - Unauthenticated SQL Injection to RCE
Description
The Custom css-js-php WordPress plugin through 2.0.7 does not properly sanitize user input before using it in a SQL query, and the result is passed to eval(), allowing unauthenticated users to execute arbitrary PHP code on the server.
INFO
Published Date :
May 11, 2026, 6:16 a.m.
Last Modified :
June 17, 2026, 11 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-6433
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update the plugin to a version that addresses the vulnerability.
- Avoid using eval() with unsanitized user input.
- Implement strict input validation and sanitization routines.
- Review plugin code for similar injection flaws.
Public PoC/Exploit Available at Github
CVE-2026-6433 has a 7 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-6433.
| URL | Resource |
|---|---|
| https://wpscan.com/vulnerability/a0b1c059-e156-4402-ac8d-67f8ad7386cc/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-6433 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-6433
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Python Shell Dockerfile PHP JavaScript CSS
None
Python Batchfile
PoC for CVE-2026-6433: WordPress FlipperCode Custom CSS, JS & PHP (≤2.0.7) — unauthenticated SQLi to RCE. Python 3 stdlib; single target or bulk multi-threaded scanning. Authorized testing & research only.
Python PHP
Public CVE advisories and proof-of-concept code by Dr. John Umoru, ClarenSec.
Python
Stress-testing & web security recon toolkit load testing, proxy rotation, login automation, and vulnerability scanning.
authorized-testing brute-force ddos ddos-attack-tool http-benchmarking k6 proxy-list proxy-rotation python stress-testing vulnerability-scanner tui exploit
Python Dockerfile Makefile Go Shell JavaScript TypeScript HTML Go Template Rich Text Format
None
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-6433 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-6433 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Unknown', 'product': 'Custom css-js-php', 'versions': [{'status': 'affected', 'version': '2.0.7', 'versionType': 'semver', 'lessThanOrEqual': '2.0.7'}], 'defaultStatus': 'unknown'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-6433', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-05-11T16:25:26.358612Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 11, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L -
New CVE Received by [email protected]
May. 11, 2026
Action Type Old Value New Value Added Description The Custom css-js-php WordPress plugin through 2.0.7 does not properly sanitize user input before using it in a SQL query, and the result is passed to eval(), allowing unauthenticated users to execute arbitrary PHP code on the server. Added Reference https://wpscan.com/vulnerability/a0b1c059-e156-4402-ac8d-67f8ad7386cc/