JLex GuestBook 1.6.4 Reflected Cross-Site Scripting via URL Parameter

Advisories

severity: medium
date: December 15, 2025
Affecting: JLex GuestBook 1.6.4
CVE: CVE-2023-53882
CWE: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS: 5.1
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
References: ExploitDB-51647
JLexArt Vendor Webpage
Credit: CraCkEr
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.