Jivejdon through 5.0 Reflected XSS via postThread.jsp to and tag Parameters

Advisories

Jivejdon through 5.0 Reflected XSS via postThread.jsp to and tag Parameters

severity: medium
date: 10/8/2026
Affecting: jivejdon <= 5.0
CVE: CVE-2026-107797
CWE: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS: 5.3
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
References: GitHub Issue #28
https://github.com/banq/jivejdon
https://github.com/banq/jivejdon/blob/ee67a65e65228644a71c8317d7e34deea50f95ef/application/message/postThread.jsp#L54-L72
Credit: Ikram-4
Description: Jivejdon through 5.0 contains a reflected cross-site scripting vulnerability in application/message/postThread.jsp that allows attackers to inject script via the to and tag parameters. Attackers can send crafted links to authenticated users, breaking out of unencoded inline JavaScript string literals to execute arbitrary JavaScript in the victim's session.

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