CVE-2026-55872

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Source

https://cve.org/CVERecord?id=CVE-2026-55872

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55872.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-55872

Aliases

GHSA-75g9-vp9w-5388

Published

2026-10-15T18:27:06Z

Modified

2026-10-17T02:48:23Z

Severity

8.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N CVSS Calculator

Summary

GYM One admin user list is vulnerable to stored cross-site scripting

Details

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 renders the stored firstname, lastname, and email profile fields into the administrator user list without HTML output encoding. An attacker who can store values in those fields can cause content to execute in an administrator's browser when the administrator visits /admin/users/. The persistent script can access administrator-session data or perform actions with the administrator's privileges until the stored record is removed. This issue is fixed in version 1.4.1.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-79"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55872.json"
}

References

Affected packages

Git / github.com/mayerbalintdev/gym-one

Affected ranges

Type

GIT

Repo

https://github.com/mayerbalintdev/gym-one

Events

Introduced

Fixed

d3a0cf134f0ab3ac12aee7dca283b93c4290dcc4

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.4.1"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

V1.*

V1.0.0

V1.0.1

V1.1.0

V1.1.1

V1.2.0

V1.2.1

V1.3.0

V1.4.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55872.json"