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CVE-2026-4316

Reflected Cross-Site Scripting in software IsMyGym by Zuinq Studio

MEDIUM
5.1
CVSS Score
Published: October 26, 2026 at 09:47 AM UTC
Updated: October 26, 2026 at 03:16 PM UTC
1 product affected across 1 vendorIsMyGym

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Severity
MEDIUM5.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Reflected Cross-Site Scripting (XSS) in Gym Management Software IsMyGym by Zuinq Studio affecting the reservation endpoint where the 'ret' parameter is reflected in the HTTP response without any proper sanitization. Successfull explotation of this vulnerability could allow an attacker to inject arbitrary JavaScript code executed in the context of the victim’s browser.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://www.incibe.es/en/incibe-cert/notices/aviso/reflected-cross-site-scripting-software-ismygym-zuinq-studio

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.1MEDIUMINCIBE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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