CVE-2026-9507
Session fixation vulnerability in Enhancesoft's osTicket
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-38 |
| Vendor | enhancesoft |
| Product | osticket |
| Published | Jun 16, 2026 |
| Last Updated | Jun 16, 2026 |
Stay Ahead of the Next One
Get instant alerts for enhancesoft osticket
Be the first to know when new unknown vulnerabilities affecting enhancesoft osticket are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Enhancesoft / osTicket
1.18.2
References
Credits
Mario Valiente