CVE-2026-9507 (GCVE-0-2026-9507)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:47 – Updated: 2026-06-16 16:18
VLAI
EPSS
VEX
Title
Session fixation vulnerability in Enhancesoft's osTicket
Summary
A session fixation vulnerability has been identified in osTicket v1.18.2. This security flaw allows an attacker to hijack a victim’s account by keeping the initial session identifier (OSTSESSID) active after a successful login.
The issue lies in the fact that the application does not invalidate the pre-authentication cookie or generate a new identifier for the authenticated context. As a result, if an attacker manages to set a known session identifier in the victim’s browser, they will be able to maintain unauthorised access to the account once the victim has authenticated.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-16 16:18 UTC
CWE
- CWE-38 - Path traversal: '\absolute\pathname\here'
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.incibe.es/en/incibe-cert/notices/avis… | patch |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Enhancesoft | osTicket |
Affected:
1.18.2
|
guessed |
Date Public
2026-06-16 11:44
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