CVE-2023-51540 WordPress Custom 404 Pro Plugin <= 3.10.0 is vulnerable to Cross Site Scripting (XSS)
Stored XSS in Custom 404 Pro allows attackers to inject malicious scripts, potentially leading to session hijacking or site defacement.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-51540?
CVE-2023-51540 is a high-severity cross-site scripting vulnerability in Kunal Nagar Custom 404 Pro, published on 1 Feb 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Kunal Nagar Custom 404 Pro allows Stored XSS.This issue affects Custom 404 Pro: from n/a through 3.10.0.
Weakness: CWE-79
Which versions are affected by CVE-2023-51540?
It affects 1 product.
Products include Kunalnagar Custom 404 Pro.
How do I fix CVE-2023-51540?
No fix has been published for CVE-2023-51540 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2023-51540 being exploited?
There is no known exploitation of CVE-2023-51540 in the wild and no public exploit code.
Other vulnerabilities in Kunal Nagar Custom 404 Pro
- CVE-2023-2032 Custom 404 Pro < 3.8.1 - Multiple SQL Injection
- CVE-2022-47605 WordPress Custom 404 Pro Plugin <= 3.7.0 is vulnerable to SQL Injection (SQLi)
- CVE-2024-39646 WordPress Custom 404 Pro plugin <= 3.11.1 - Reflected Cross Site Scripting (XSS) vulnerability
- CVE-2023-2023 Custom 404 Pro < 3.7.3 - Reflected Cross-Site Scripting
- CVE-2019-15838 Cross-site scripting in n/a
Sources
Also known as GHSA-77pp-vwgv-x2jq.