Login CSRF via unvalidated OAuth state
Published Oct 12, 2026 · Updated Oct 12, 2026
Login CSRF in Casdoor SSO in 0xJacky Nginx UI before 2.4.1 allows remote attackers to force attacker-account login via a crafted callback. GetCasdoorUri uses the application name as constant state, while CasdoorCallback exchanges submitted codes without checking browser-bound state. Exploitation requires configured Casdoor SSO, a mapped attacker identity, and victim browser interaction; subsequent victim uploads or configuration become exposed to that identity.
Summary
What happened
Login CSRF in Casdoor SSO in 0xJacky Nginx UI before 2.4.1 allows remote attackers to force attacker-account login via a crafted callback. GetCasdoorUri uses the application name as constant state, while CasdoorCallback exchanges submitted codes without checking browser-bound state. Exploitation requires configured Casdoor SSO, a mapped attacker identity, and victim browser interaction; subsequent victim uploads or configuration become exposed to that identity.
The record
- CVE
- CVE-2026-84312
- Published
- Oct 12, 2026
- Updated
- Oct 12, 2026
- Vendor
- 0xJacky
- Product
- Nginx UI
- Classifications
- CWE-287, CWE-352
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 12, 2026CVE publishedPublication date reported by the CVE source.
- Oct 12, 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.
- Affected versionversion=< 2.4.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Activity data is delayed. The latest report is Sep 28, 2026.
Public exploit references
- Casdoor login-CSRF HTML proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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