Vulnerability in Custom Css-Js-Php

CVE-2026-6433

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.008 (55.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-6433: held from 0.012 to 0.008.

EPSS over last 30 days · oldest: 0.012 · newest: 0.008 · change: -0.004

Affected products

  • Custom Css-Js-Php — versions 2.0.7

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2026-6433?
CVE-2026-6433 is a high-severity vulnerability in Custom Css-Js-Php, classified under CWE-94 IMPROPER CONTROL OF GENERATION OF CODE ('CODE INJECTION'). CVSS score: 7.3/10. Published 2026-05-11.
How severe is CVE-2026-6433?
High severity. CVSS v3 base score is 7.3 out of 10.
Is CVE-2026-6433 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.