CVE-2025-50870

Critical

Published: 01 August 2025

Published

01 August 2025

Modified

15 April 2026

KEV Added

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Patch

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CVSS Score 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0031 54.2th percentile

Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-50870 is a critical-severity Improper Access Control (CWE-284) vulnerability in Mitre (inferred from references). Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 45.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 AC-24 (Access Control Decisions) and AC-3 (Access Enforcement).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

AC-3 Access Enforcement good match

prevent

Directly requires enforcement of approved authorizations for access to sensitive student information, addressing the lack of identity and permission validation in the mydetailsstudent.php endpoint.

AC-24 Access Control Decisions good match

prevent

Mandates explicit authorization decisions for accessing organization-defined resources like student personal data, preventing unauthorized enumeration via the myds parameter.

AC-6 Least Privilege partial match

prevent

Applies least privilege to restrict access to student details only to authorized users, mitigating disclosure even if basic access is gained.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

Direct exploitation of unauthenticated access control flaw in public-facing web endpoint for data disclosure.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

Institute-of-Current-Students 1.0 is vulnerable to Incorrect Access Control in the mydetailsstudent.php endpoint. The myds GET parameter accepts an email address as input and directly returns the corresponding student's personal information without validating the identity or permissions of the requesting user.…

This allows any authenticated or unauthenticated attacker to enumerate and retrieve sensitive student details by altering the email value in the request URL, leading to information disclosure.

Deeper analysisAI

CVE-2025-50870 affects Institute-of-Current-Students version 1.0, specifically the mydetailsstudent.php endpoint, due to incorrect access control. The endpoint's myds GET parameter accepts an email address as input and directly returns the corresponding student's personal information without validating the requesting user's identity or permissions. This flaw, classified under CWE-284, has a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating critical severity with high impacts on confidentiality, integrity, and availability.

Any authenticated or unauthenticated attacker can exploit this vulnerability over the network with low complexity and no user interaction required. By altering the email value in the request URL, attackers can enumerate and retrieve sensitive student details, resulting in information disclosure.

References include the CWE-284 definition at https://cwe.mitre.org/data/definitions/284.html and a GitHub Gist at https://gist.github.com/b0mk35h/c4d47b5c4aacecdc8e6c4b02b40ce302, which may provide additional technical details, though no specific patches or mitigation steps are detailed in the available information.