CVE-2022-2118: 404s < 3.5.1 - Admin+ Stored Cross-Site Scripting

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: 2022-07-17 · updated 2026-06-17
Weakness: CWE-79

Description

The 404s WordPress plugin before 3.5.1 does not sanitise and escape its fields, allowing high privilege users such as admin to perform cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

Affected products

404s: before 3.5.1 — fixed in 3.5.1

How to fix

Upgrade to a fixed version: 404s 3.5.1. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/9a19af60-d6e6-4fa3-82eb-3636599b814c
https://wpscan.com/vulnerability/9a19af60-d6e6-4fa3-82eb-3636599b814c

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