Vision Helpdesk before 5.7.0 (patched in 5.6.10) allows attackers to read user profiles via modified serialized cookie data to vis_client_id.
https://websec.net/blog/critical-vulnerability-in-vision-helpdesk-allows-unauthorized-session-access-67264646bde7fa99ea26446f
https://github.com/websec/Vision-Helpdesk-Exploit
Source: Mitre, NVD
Published: 2026-04-16
Updated: 2026-04-17
Base Score: 4
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N
Severity: Medium
Base Score: 4.3
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.00025