CVE-2023-1373: W4 Post List < 2.4.6 - Reflected XSS

Severity: medium (CVSS 6.1 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: 2023-04-17 · updated 2026-06-17

Description

The W4 Post List WordPress plugin before 2.4.6 does not escape some URLs before outputting them in attributes, leading to Reflected Cross-Site Scripting

Affected products

W4 Post List: before 2.4.6 — fixed in 2.4.6

How to fix

Upgrade to a fixed version: W4 Post List 2.4.6. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/fa38f3e6-e04c-467c-969b-0f6736087589
https://wpscan.com/vulnerability/fa38f3e6-e04c-467c-969b-0f6736087589

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