CVE-2023-47877: WordPress Perfmatters Plugin < 2.2.0 is vulnerable to Cross Site Scripting (XSS)

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-11-30 · updated 2026-06-17
Weakness: CWE-79

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Perfmatters allows Stored XSS.This issue affects Perfmatters: from n/a before 2.2.0.

Affected products

Perfmatters: before 2.2.0 — fixed in 2.2.0

How to fix

Upgrade to a fixed version: Perfmatters 2.2.0. Check the vendor advisory for mitigations.

References

https://patchstack.com/database/vulnerability/perfmatters/wordpress-perfmatters-plugin-2-1-6-stored-cross-site-scripting-xss-vulnerability?_s_id=cve
https://patchstack.com/database/vulnerability/perfmatters/wordpress-perfmatters-plugin-2-1-6-stored-cross-site-scripting-xss-vulnerability?_s_id=cve

Get alerted when CVE-2023-47877 or the next vulnerability affects your stack