What’s Vulnerable › Vulnerabilities

CVE-2026-102373: GestSup before 3.2.62 Private Ticket Comment Disclosure via threadedit Parameter

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-29 · updated 2026-10-01
• Weakness: CWE-639

Description

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.

Affected products

• GestSup: before 3.2.62 — fixed in 3.2.62

How to fix

Upgrade to a fixed version: GestSup 3.2.62. Check the vendor advisory for mitigations.

References

• https://blog.spiizn.xyz/articles/remote-code-execution-turning-a-ticket-into-a-new-issue/
• https://gestsup.fr/index.php?page=changelog
• https://gestsup.fr/index.php?page=download
• https://gestsup.fr/index.php?page=download&channel=stable&version=3.2.62&type=patch
• https://www.vulncheck.com/advisories/gestsup-before-3.2.62-private-ticket-comment-disclosure-via-threadedit-parameter

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