XSS in Boldgrid W3 Total Cache

CVE-2021-24436

The W3 Total Cache WordPress plugin before 2.1.4 was vulnerable to a reflected Cross-Site Scripting (XSS) security vulnerability within the "extension" parameter in the Extensions dashboard, which is output in an attribute without being es…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.046 (89.5th percentile) — read the EPSS interpretation.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-24436?
CVE-2021-24436 is a vulnerability in Boldgrid W3 Total Cache, classified under Cross-site Scripting. Published 2021-07-19.
Is CVE-2021-24436 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.