Account takeover via unvalidated OAuth2 redirect URI
Published Sep 30, 2025 · Updated Sep 30, 2025
Open redirect in Corezoid 6.6.0 OAuth2 allows remote attackers to steal authorization codes and take over authenticated victim accounts. The /oauth2/authorize endpoint accepts an attacker-controlled redirect_uri without an exact allowlist check and appends the issued authorization code to that destination. An authenticated victim must follow the crafted authorization link; the stolen code can then be exchanged for a session cookie that grants access as the victim.
Summary
What happened
Open redirect in Corezoid 6.6.0 OAuth2 allows remote attackers to steal authorization codes and take over authenticated victim accounts. The /oauth2/authorize endpoint accepts an attacker-controlled redirect_uri without an exact allowlist check and appends the issued authorization code to that destination. An authenticated victim must follow the crafted authorization link; the stolen code can then be exchanged for a session cookie that grants access as the victim.
The record
- CVE
- CVE-2024-55017
- Published
- Sep 30, 2025
- Updated
- Sep 30, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-601, T1539
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 30, 2025CVE publishedPublication date reported by the CVE source.
- Sep 30, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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.
Weakness, pattern, technique
Public exploit references
- OAuth2 redirect_uri account-takeover proof of conceptfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo