What is CVE-2021-24436?

CVE-2021-24436 is a medium-severity vulnerability in Boldgrid W3 Total Cache, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-07-19.

How severe is CVE-2021-24436?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2021-24436 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

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: 0.019 (77.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Boldgrid W3 Total Cache — versions 2.1.4
Boldgrid W3_total_cache

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

contact@wpscan.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-24436?: CVE-2021-24436 is a medium-severity vulnerability in Boldgrid W3 Total Cache, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-07-19.
How severe is CVE-2021-24436?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2021-24436 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.