CVE-2026-55871 Details
Description
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.
A SQL injection vulnerability has been identified in GYM One versions prior to 1.4.1. The issue resides in the admin/users/index.php file, where the search_name and search_email GET parameters are concatenated into SQL queries without proper sanitization or use of prepared statements. This vulnerability allows authenticated administrators to inject SQL that could be used to read data from any table in the database, including sensitive user information and password hashes. In some cases, depending on database permissions, it might also be possible to write files to the filesystem.
Users are advised to update to GYM One version 1.4.1 or later, where this vulnerability has been patched by replacing the vulnerable SQL query concatenations with prepared statements that properly bind parameters.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 15, 2026CISA-ADP
Assessed Oct 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/mayerbalintdev/GYM-One/security/advisories/GHSA-9j4g-cq35-8997 | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/mayerbalintdev/GYM-One/commit/d3a0cf134f0ab3ac12aee7dca283b93c4290dcc4 | [email protected] | Source CodeVendor |
| https://github.com/mayerbalintdev/GYM-One/releases/tag/V1.4.1 | [email protected] | Release NotesVendor |
| https://github.com/mayerbalintdev/GYM-One/security/advisories/GHSA-9j4g-cq35-8997 | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-89 | Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| GYM One | 1.1.0 (semver) ~1.1.0, <= 1.4.0 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 15, 2026 | CVE Modified | CISA-ADP |
| Oct 15, 2026 | New CVE Received | [email protected] |