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TI-2026-27712 Aliases CVE-2026-35610

PolarLearn has a Server Action Admin Bypass in Account Management Actions

Priority HIGH 73CWE-285Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-285.

Summary

PolarLearn is a free and open-source learning program. In 0-PRERELEASE-14 and earlier, setCustomPassword(userId, password) and deleteUser(userId) in the account-management module used an inverted admin check. Because of the inverted condition, authenticated non-admin users were allowed to execute both actions, while real admins were rejected. This is a direct privilege-escalation issue in the application.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0031 23rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
polarnlPolarLearnup to 0-PRERELEASE-14—No fix listedCNA
  • PolarLearn Vendorpolarnl Affected up to 0-PRERELEASE-14 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:polarlearn:polarlearn:-:*:*:*:*:*:*:*not specified by NVDVulnerablepolarnl
  • cpe:2.3:a:polarlearn:polarlearn:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·polarnl

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35610

References

Exploit 1

  • TI-2026-20372 PolarLearn Affected by User Enumeration via Argon2 Timing Attack on Sign-In Endpoint CVSS 4.0MEDIUM 6.3
  • TI-2026-20925 PolarLearn allows Unauthenticated WebSocket access allows subscribing to and posting in arbitrary group chats CVSS 4.0CRITICAL 10.0
  • TI-2026-20371 PolarLearn has Multiple Login CSRFs via Missing OAuth state Parameter (GitHub & Google) CVSS 4.0LOW 2.3
  • TI-2026-28311 PolarLearn: Any password authenticates banned accounts and grants API access CVSS 4.0CRITICAL 9.2
  • TI-2026-20289 PolarLearn's unvalidated vote direction allows vote count manipulation CVSS 3.1HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences