Session fixation vulnerability in Enhancesoft's osTicket
Published Jun 16, 2026
5.1
MEDIUMCVSS 4.0
EPSS 0.62%
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.
Affected products
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- Version 1.18.2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Enhancesoft | osTicket | unaffected |
|
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No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor 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.
References (1)
Change history (0)
No recorded changes yet.