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.
No advisories yet.
Solution
The current (legacy) source code is in maintenance mode, whilst Enhancesoft is focusing on a complete rewrite of the code (v2.0). This means that release cycles and security updates for the legacy code have been significantly delayed.
Workaround
No workaround given by the vendor.
Tue, 16 Jun 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 16 Jun 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Enhancesoft
Enhancesoft osticket |
|
| Vendors & Products |
Enhancesoft
Enhancesoft osticket |
Tue, 16 Jun 2026 13:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Session fixation vulnerability in Enhancesoft's osTicket | |
| Weaknesses | CWE-38 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: INCIBE
Published:
Updated: 2026-06-16T16:18:10.713Z
Reserved: 2026-05-25T13:36:09.788Z
Link: CVE-2026-9507
Updated: 2026-06-16T16:18:06.428Z
Status : Deferred
Published: 2026-06-16T13:16:38.140
Modified: 2026-06-16T15:36:43.610
Link: CVE-2026-9507
No data.
OpenCVE Enrichment
Updated: 2026-06-16T15:00:06Z