What is the CVSS score of CVE-2026-24773?

CVE-2026-24773 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.1%.

Which versions of Open Eclass Platform are affected by CVE-2026-24773?

Open eClass Platform versions up to 4.2 contain a critical authorization bypass vulnerability that allows attackers to escalate privileges or access unauthorized resources.

Is there a public PoC exploit available for CVE-2026-24773?

Yes, a public proof-of-concept exploit is available for CVE-2026-24773. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-24773?

Within 24 hours: Verify all instances of Open eClass Platform and document version numbers; isolate affected systems from production if possible and enable enhanced logging. Within 7 days: Implement network segmentation to restrict access to eClass administration interfaces; deploy WAF rules to block exploitation attempts targeting authorization mechanisms. Within 30 days: Upgrade to patched version when available; if upgrade timeline is extended, implement application-layer access controls and consider disabling non-essential features that depend on authorization checks.

Open Eclass Platform CVE-2026-24773

HIGH

Authorization Bypass Through User-Controlled Key (CWE-639)

2026-02-03 security-advisories@github.com

Authentication Bypass Open Eclass Platform

7.5

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Feb 10, 2026 - 17:25 vuln.today

Public exploit code

CVE Published

Feb 03, 2026 - 18:16 nvd

HIGH 7.5

DescriptionGitHub Advisory

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, an Insecure Direct Object Reference (IDOR) vulnerability allows unauthenticated remote attackers to access personal files of other users by directly requesting predictable user identifiers. This issue has been patched in version 4.2.

AnalysisAI

Open Eclass Platform versions up to 4.2 is affected by authorization bypass through user-controlled key (CVSS 7.5).

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Enumerate predictable user identifiers

Exploit

Craft direct file access request with target user ID

Impact

Retrieve personal files without authentication

Access

Enumerate predictable user identifiers

Exploit

Craft direct file access request with target user ID

Impact

Retrieve personal files without authentication

Vulnerability AssessmentAI

Exploitation	Open eClass versions prior to 4.2 with default file access controls. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 7.5 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	A remote attacker without authentication could exploit this vulnerability to compromise the affected system.
Remediation	Fixed in version 4.2.. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Verify all instances of Open eClass Platform and document version numbers; isolate affected systems from production if possible and enable enhanced logging. …

Threat intelligence, references, and detailed analysis are available after sign-in.

CVE-2026-24773 vulnerability details – vuln.today

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Open Eclass Platform CVE-2026-24773

Severity by source

CVSS VectorGitHub Advisory

Lifecycle Timeline

DescriptionGitHub Advisory

AnalysisAI

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Attack ChainAIDerived

Vulnerability AssessmentAI

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External POC / Exploit Code