What is CVE-2021-24963?

CVE-2021-24963 is a medium-severity vulnerability in Litespeedtech Litespeed_cache, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-01-03.

How severe is CVE-2021-24963?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2021-24963 known to be exploited?

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

XSS in Litespeedtech Litespeed_cache

CVE-2021-24963

The LiteSpeed Cache WordPress plugin before 4.4.4 does not escape the qc_res parameter before outputting it back in the JS code of an admin page, leading to a Reflected Cross-Site Scripting

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (47.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Litespeedtech Litespeed_cache
Unknown Litespeed Cache — versions 4.4.4

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

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

Frequently asked questions

What is CVE-2021-24963?: CVE-2021-24963 is a medium-severity vulnerability in Litespeedtech Litespeed_cache, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-01-03.
How severe is CVE-2021-24963?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2021-24963 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.