GestSup versions before 3.2.62 fail to validate ticket ownership when loading comments via the threadedit parameter in thread.php. Authenticated attackers can enumerate sequential comment IDs to read private comments from other users' tickets without proper authorization checks.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://gestsup.fr/index.php?page=changelog
disclosure@vulncheck.com
https://gestsup.fr/index.php?page=download
disclosure@vulncheck.com
https://gestsup.fr/index.php?page=download&channel=stable&version=3.2.62&type=p…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/gestsup-before-3.2.62-private-ticket-comme…
disclosure@vulncheck.com
https://blog.spiizn.xyz/articles/remote-code-execution-turning-a-ticket-into-a-…
disclosure@vulncheck.com