CVE-2023-32740 MEDIUM

CVE-2023-32740: WordPress Custom 404 Pro Plugin <= 3.8.1 is vulnerable to Cross Site Scripting (XSS)

Vendor Kunal Nagar

Product Custom 404 Pro

Weakness CWE-79 · XSS

Published August 30, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

5.8/10

Attack vector Network

Attack complexity High

Privileges required None

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Kunal Nagar Custom 404 Pro plugin <= 3.8.1 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Custom 404 Pro versions up to 3.8.1 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages. An attacker can craft a malicious link that, when visited by a site user, executes arbitrary JavaScript in the victim's browser. This can lead to session hijacking, credential theft, or defacement. The vulnerability requires user interaction and network access but no authentication.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in a visitor's browser to steal session cookies, credentials, or deface the site.

Potential impact on your site

04Site Impact

Visitors to your site could have their sessions hijacked or credentials stolen if they click attacker-controlled links.

Conditions required to exploit

05Prerequisites

Attacker must trick a site visitor into clicking a malicious link or visiting a crafted page. No authentication required.

Key dates

06Disclosure timeline

August 30, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-32740 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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