CVE-2021-24343: iFlyChat – WordPress Chat < 4.7.0 - Admin+ Stored Cross-Site Scripting (XSS)

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-06-07 · updated 2026-06-17
Weakness: CWE-79

Description

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

Affected products

iFlyChat Team iFlyChat – WordPress Chat: before 4.7.0 — fixed in 4.7.0

How to fix

Upgrade to a fixed version: iFlyChat Team iFlyChat – WordPress Chat 4.7.0. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/d6c72d90-e321-47b9-957a-6fea7c944293
https://wpscan.com/vulnerability/d6c72d90-e321-47b9-957a-6fea7c944293

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