CVE-2023-53882 JLex GuestBook 1.6.4 Reflected Cross-Site Scripting via URL Parameter
Attackers can inject malicious scripts via the 'q' URL parameter in JLex GuestBook, potentially stealing session tokens or executing JavaScript in victims' browsers.
- 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-2023-53882?
CVE-2023-53882 is a medium-severity cross-site scripting vulnerability in jlexart JLex GuestBook, published on 15 Dec 2025. 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
JLex GuestBook 1.6.4 contains a reflected cross-site scripting vulnerability in the 'q' URL parameter that allows attackers to inject malicious scripts. Attackers can craft malicious links with XSS payloads to steal session tokens or execute arbitrary JavaScript in victims' browsers.
Weakness: CWE-79
Which versions are affected by CVE-2023-53882?
How do I fix CVE-2023-53882?
No fix has been published for CVE-2023-53882 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-2023-53882 being exploited?
There is no known exploitation of CVE-2023-53882 in the wild and no public exploit code.
Sources
Also known as GHSA-28pf-c23w-fjrm.