EIP-2026-102458

PRE-CVE

Atlassian JIRA 3.4.2 - IssueNavigator.JSPA Cross-Site Scripting

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-102458. PoCs published by syniack.

AI-analyzed exploit summary The exploit demonstrates a cross-site scripting (XSS) vulnerability in Atlassian JIRA by injecting malicious script tags into the 'requestId' parameter of the IssueNavigator.jspa endpoint. The vulnerability arises due to insufficient input sanitization, allowing arbitrary JavaScript execution in the context of the affected site.

Description

Atlassian JIRA 3.4.2 - IssueNavigator.JSPA Cross-Site Scripting

Exploits (1)

exploitdb WORKING POC VERIFIED
by syniack · textwebappsjsp
https://www.exploit-db.com/exploits/29811

The exploit demonstrates a cross-site scripting (XSS) vulnerability in Atlassian JIRA by injecting malicious script tags into the 'requestId' parameter of the IssueNavigator.jspa endpoint. The vulnerability arises due to insufficient input sanitization, allowing arbitrary JavaScript execution in the context of the affected site.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Atlassian JIRA version 3.4.2 (and prior versions)
No auth needed
Prerequisites: Access to the target JIRA instance · User interaction to trigger the XSS payload
MITRE ATT&CK
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026