CVE-2026-102373

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.

CVSS 4.0

7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-25)

CWE

CWE-639

Published

2026-09-29

Modified

2026-10-01

Record from

the NVD, synced 2026-10-19

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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