CVE-2023-47876 HIGH

CVE-2023-47876: WordPress Perfmatters Plugin <= 2.1.6 is vulnerable to Cross Site Scripting (XSS)

Vendor Perfmatters

Product Perfmatters

Weakness CWE-79 · XSS

Published November 30, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

7.1/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Perfmatters allows Reflected XSS.This issue affects Perfmatters: from n/a through 2.1.6.

Explanation of Vulnerability in Simple Terms

02Summary

Perfmatters versions up to 2.1.6 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into the site. An attacker can craft a malicious link that, when clicked by a site visitor or administrator, executes arbitrary JavaScript in their browser. This can lead to session hijacking, credential theft, or malware distribution.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in visitors' browsers to steal credentials or hijack sessions.

Potential impact on your site

04Site Impact

Visitors and admins who click attacker-controlled links may have sessions hijacked or credentials stolen.

Conditions required to exploit

05Prerequisites

Attacker must trick a site visitor or admin into clicking a malicious link (user interaction required).

Key dates

06Disclosure timeline

November 30, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-47876 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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