CVE-2025-67852Network attack vector

Post-authentication redirection via unrestricted OAuth destination

Published Feb 3, 2026 · Updated Feb 3, 2026

Open redirect in Moodle LMS allows remote authenticated users to reach attacker-controlled sites after completing OAuth login. The auth/oauth2/login.php endpoint accepts wantsurl with PARAM_URL, permitting an external URL to become the post-login destination. Exploitation requires configured OAuth login, successful user authentication, and interaction with a crafted login link; the redirect can support phishing or disclose data sent to the destination.

CVSS severity3.5
Low
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in Moodle LMS allows remote authenticated users to reach attacker-controlled sites after completing OAuth login. The auth/oauth2/login.php endpoint accepts wantsurl with PARAM_URL, permitting an external URL to become the post-login destination. Exploitation requires configured OAuth login, successful user authentication, and interaction with a crafted login link; the redirect can support phishing or disclose data sent to the destination.

The record

CVE
CVE-2025-67852
Published
Feb 3, 2026
Updated
Feb 3, 2026
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-601, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.1.0 <4.1.22
  2. Affected versionversion=4.4.0 <4.4.12
  3. Affected versionversion=4.5.0 <4.5.8
  4. Affected versionversion=5.0.0 <5.0.4
  5. Affected versionversion=5.1.0 <5.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Moodle · Moodle LMSversion=4.1.0 <4.1.22; version=4.4.0 <4.4.12; version=4.5.0 <4.5.8; version=5.0.0 <5.0.4; version=5.1.0 <5.1.1

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.5Fedora ProjectCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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