CVE-2021-24437

MEDIUM 6.1CVE-2021-24437 · Published 30/08/2021 · updated 17/06/2026

In short

CVE-2021-24437 is a MEDIUM (CVSS 6.1) vulnerability affecting favicon by realfavicongenerator (realfavicongenerator).
Chance of exploitation in the next 30 days (EPSS): 0.83%, higher than 57.6% of all vulnerabilities.
Fix: update to 1.3.22 or later.

Package	Affected versions	Patched versions
favicon by realfavicongenerator realfavicongenerator	`< 1.3.22`	`1.3.22`

Description

The Favicon by RealFaviconGenerator WordPress plugin through 1.3.20 does not sanitise or escape one of its parameter before outputting it back in the response, leading to a Reflected Cross-Site Scripting (XSS) which is executed in the context of a logged administrator.

References

wpscan.com/vulnerability/ed9d26be-cc96-4274-a05b-0b7ad9d8cfd9 · Exploit

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