CVE-2026-25221

LOW EPSS 10.3%
Published Feb 2, 20265mo ago · Modified Jun 17, 20262w ago
2.3 CVSS 4.0
Low
Find Similar
Published Feb 2, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

Description

PolarLearn is a free and open-source learning program. In 0-PRERELEASE-15 and earlier, the OAuth 2.0 implementation for GitHub and Google login providers is vulnerable to Login Cross-Site Request Forgery (CSRF). The application fails to implement and verify the state parameter during the authentication flow. This allows an attacker to pre-authenticate a session and trick a victim into logging into the attacker's account. Any data the victim then enters or academic progress they make is stored on the attacker's account, leading to data loss for the victim and information disclosure to the attacker.

CVSS Details

Base Score
2.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
10.3% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-352 Cross-Site Request Forgery (CSRF) Authentication

Affected Products 1

VendorProductVersionRange
polarlearnpolarlearn*any

References 2

  • github.com https://github.com/polarnl/PolarLearn/commit/44669bbb5b647c7625f22dd82f3121c7d7bfbe19
    Patch
  • github.com https://github.com/polarnl/PolarLearn/security/advisories/GHSA-fhhm-574m-7rpw
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/polarnl/PolarLearn/commit/44669bbb5b647c7625f22dd82f3121c7d7bfbe19
    Patch