CVE-2026-55871

GYM One is open-source gym management software for fitness centers, personal trainers, and sports clubs. Prior to 1.4.1, GYM One's admin/users/index.php concatenates the search_name and search_email GET parameters into both the user-list query and the COUNT query used for pagination without prepared statements. An authenticated administrator can inject SQL through either search field to read data from arbitrary tables, including user information and password hashes. Depending on database permissions, the same injection may also permit filesystem writes. This issue is fixed in version 1.4.1.

• CWE-89

• https://github.com/mayerbalintdev/GYM-One/commit/d3a0cf134f0ab3ac12aee7dca283b93c4290dcc4
• https://github.com/mayerbalintdev/GYM-One/releases/tag/V1.4.1
• https://github.com/mayerbalintdev/GYM-One/security/advisories/GHSA-9j4g-cq35-8997
• https://github.com/mayerbalintdev/GYM-One/security/advisories/GHSA-9j4g-cq35-8997

Published

Oct 15, 2026

Last Modified

Oct 16, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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