XSS in Iflychat

CVE-2021-24343

The iFlyChat WordPress plugin before 4.7.0 does not sanitise its APP ID setting before outputting it back in the page, leading to an authenticated Stored Cross-Site Scripting issue

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (46.5th 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

  • Iflychat
  • Unknown Iflychat – Wordpress Chat — versions 4.7.0

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-24343?
CVE-2021-24343 is a medium-severity vulnerability in Iflychat, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-06-07.
How severe is CVE-2021-24343?
Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2021-24343 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.