PT-2026-5729 · Google+2 · Google+2

Jvr2022 · Published 2026-02-02 · Updated 2026-03-02 · CVE-2026-25221

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions PolarLearn versions 0-PRERELEASE-15 and earlier

Description The OAuth 2.0 implementation for GitHub and Google login providers is susceptible to Login Cross-Site Request Forgery (CSRF). The application does not implement and verify the state parameter during the authentication process. This allows an attacker to pre-authenticate a session and deceive a victim into logging into the attacker’s account. As a result, any data entered or academic progress made by the victim is stored on the attacker’s account, potentially leading to data loss for the victim and information disclosure to the attacker.

Recommendations Versions prior to 0-PRERELEASE-15 should be updated.

Exploit

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2026-25221

GHSA-FHHM-574M-7RPW

Affected Products

Github

Google

Polarlearn

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25221.json · Exploit
• https://github.com/polarnl/PolarLearn/security/advisories/GHSA-fhhm-574m-7rpw · Vendor Advisory
• https://github.com/polarnl/PolarLearn/commit/44669bbb5b647c7625f22dd82f3121c7d7bfbe19 · Patch
• https://osv.dev/vulnerability/CVE-2026-25221 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-25221 · Security Note
• https://twitter.com/DavidMarquet19/status/2028379926340964355 · Twitter Post
• https://twitter.com/CVEnew/status/2018465502591406280 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2018474052818481617 · Twitter Post