CVE-2021-24241

Public Exploit

Advanced Custom Field Pro < 5.9.1 - Reflected Cross-Site Scripting (XSS)

Description

The Advanced Custom Fields Pro WordPress plugin before 5.9.1 did not properly escape the generated update URL when outputting it in an attribute, leading to a reflected Cross-Site Scripting issue in the update settings page.

References

Link	Tags
https://wpscan.com/vulnerability/d1e9c995-37bd-4952-b88e-945e02e3c83f	third party advisory exploit
https://github.com/jdordonezn/Reflected-XSS-in-WordPress-for-ACF-PRO-before-5.9.1-plugin/issues/1	third party advisory exploit
https://www.advancedcustomfields.com/blog/acf-5-9-1-release/	release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-24241?: CVE-2021-24241 has been scored as a medium severity vulnerability.
How to fix CVE-2021-24241?: To fix CVE-2021-24241, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-24241 being actively exploited in the wild?: It is possible that CVE-2021-24241 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-24241?: CVE-2021-24241 affects Unknown Advanced Custom Fields Pro.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.

Description

Category

CWE-79 – Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

Frequently Asked Questions