XSS in Holithemes Click To Chat

CVE-2022-4480

The Click to Chat WordPress plugin before 3.18.1 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (42.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • contact@wpscan.com (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2022-4480?
CVE-2022-4480 is a medium-severity vulnerability in Holithemes Click To Chat, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-01-16.
How severe is CVE-2022-4480?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2022-4480 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.