Is CVE-2026-124502 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-124502 being exploited in the wild.

How severe is CVE-2026-124502?

Medium severity, with a CVSS score of 4.3, published 9 November 2026.

Is there a fix for CVE-2026-124502?

Yes: fixed in 3.0.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-124502 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-124502?

Check whether you run Yungifez Skuul at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-124502: yungifez Skuul missing authorization in graduation reset

CVE-2026-124502 · Severity: medium · CVSS 4.3 · Published 2026-11-09

Skuul is a self-hosted school management system used by educational institutions to manage student records, graduations, and promotions. An authenticated non-admin user—such as a teacher—can reset a student's graduation status by exploiting a missing authorization check, effectively undoing an admin-only action. This allows any school staff member to manipulate student academic records without proper permission.

Technologies: Yungifez Skuul. Vendors: Yungifez.

Quick answers

Is CVE-2026-124502 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-124502 being exploited in the wild.
How severe is CVE-2026-124502?: Medium severity, with a CVSS score of 4.3, published 9 November 2026.
Which products and versions are affected?: Yungifez Skuul up to 2.6.3.
Is there a fix for CVE-2026-124502?: Yes: fixed in 3.0.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-124502 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-124502?: Check whether you run Yungifez Skuul at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 3.0.0

Technical details

A broken access control vulnerability (CWE-862 / CWE-639) in the GraduationController::resetGraduation endpoint fails to invoke the existing GraduationPolicy::resetGraduation() authorization check. Any authenticated school member can call DELETE /dashboard/students/graduations/{student}/reset to reset a student's graduation status; the code only verifies the target is a student, not that the caller has the "reset graduation" permission (admin-only). A related PromotionController::resetPromotion endpoint also permits cross-school IDOR by not validating the target promotion belongs to the caller's school.

Affected products

yungifez Skuul up to 2.6.3

Timeline

2026-10-14: disclosed: Vulnerability details published on GitHub gist
2026-09-27: patched: Fix commit b42f2c80a8e5e01ca6e607bbd97f137ede368ac9 merged
2026-11-09: advisory

References

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