CSRF in Flippercode Custom Css-Js-Php

CVE-2021-4418

The Custom CSS, JS & PHP plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.0.7. This is due to missing or incorrect nonce validation on the save() function. This makes it possible for unauthenticated attackers to save code snippets via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.004 (32.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-4418?
CVE-2021-4418 is a medium-severity vulnerability in Flippercode Custom Css-Js-Php, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2023-10-20.
How severe is CVE-2021-4418?
Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2021-4418 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.