Summary
INSATutorat has an authorization bypass vulnerability in its /api/admin/* endpoints
Workarounds
There is no workaround other than applying the fix in the source code.
Resources:
- Link to the fix commit: 15ae474
Credits
INSATutorat thanks the Master 2 SSI 25-26 team at the University of Rouen Normandie for their research work on this project.
- Malak Bekkai
- Matthieu Espada Mora
- Amen Allah Khalf Allah
- Liam Laouenan
- Neila Ould Slimane
- Lucas Thomire
This advisory was translated from French to English by GitHub Copilot.
Impact
An authorization bypass vulnerability was discovered in the administration pages of the tutoring application. When a standard user (logged in but without administrator privileges) attempts to access a resource under /api/admin/, the system detects the error but does not block the request.
As a result, sensitive data is still transmitted by the server in the request (GET), and modification actions such as campaign creation (POST) are executed successfully despite the FORBIDDEN error message. All /api/admin/* endpoints are affected.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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The issue was resolved by adding the missing c.Abort() instruction in the Gin authentication middleware (commit 15ae474). This instruction immediately interrupts the processing chain if the user is not an administrator.
Frequently Asked Questions
- What is GHSA-XFX2-PRG5-JQ3G? GHSA-XFX2-PRG5-JQ3G is a high-severity security vulnerability in github.com/romitou/insatutorat (go), affecting versions < 0.0.0-20260226075457-15ae47425aed. It is fixed in 0.0.0-20260226075457-15ae47425aed.
- Which versions of github.com/romitou/insatutorat are affected by GHSA-XFX2-PRG5-JQ3G? github.com/romitou/insatutorat (go) versions < 0.0.0-20260226075457-15ae47425aed is affected.
- Is there a fix for GHSA-XFX2-PRG5-JQ3G? Yes. GHSA-XFX2-PRG5-JQ3G is fixed in 0.0.0-20260226075457-15ae47425aed. Upgrade to this version or later.
- Is GHSA-XFX2-PRG5-JQ3G exploitable, and should I be worried? Whether GHSA-XFX2-PRG5-JQ3G is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether GHSA-XFX2-PRG5-JQ3G is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix GHSA-XFX2-PRG5-JQ3G? Upgrade
github.com/romitou/insatutoratto 0.0.0-20260226075457-15ae47425aed or later.