CVE-2021-24586: Per Page Add to Head < 1.4.4 - CSRF to Stored XSS

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-09-13 · updated 2026-06-17
Weakness: CWE-79

Description

The Per page add to head WordPress plugin before 1.4.4 is lacking any CSRF check when saving its settings, which could allow attackers to make a logged in admin change them. Furthermore, as the plugin allows arbitrary HTML to be inserted in one of the setting (feature mentioned by the plugin), this could lead to Stored XSS issue which will be triggered either in the backend, frontend or both depending on the payload used.

Affected products

Per page add to head: before 1.4.4 — fixed in 1.4.4

How to fix

Upgrade to a fixed version: Per page add to head 1.4.4. Check the vendor advisory for mitigations.

References

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