CVE-2022-1990: Nested Pages < 3.1.21 - Admin+ Stored Cross Site Scripting

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-06-27 · updated 2026-06-17
Weakness: CWE-79

Description

The Nested Pages WordPress plugin before 3.1.21 does not escape and sanitize the some of its settings, which could allow high privilege users to perform Stored Cross-Site Scripting attacks when the unfiltered_html is disallowed

Affected products

Nested Pages: before 3.1.21 — fixed in 3.1.21

How to fix

Upgrade to a fixed version: Nested Pages 3.1.21. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/42f1bf1f-95a8-41ee-a637-88deb80ab870
https://wpscan.com/vulnerability/42f1bf1f-95a8-41ee-a637-88deb80ab870

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