CVE-2023-49104

6.1 mediumEPSS 0.6%

Medium (6.1) in owncloud oauth2. EPSS 0.6% chance of exploitation in the next 30 days.

An issue was discovered in ownCloud owncloud/oauth2 before 0.6.1, when Allow Subdomains is enabled. An attacker is able to pass in a crafted redirect-url that bypasses validation, and consequently allows an attacker to redirect callbacks to a Top Level Domain controlled by the attacker.

Severity

CVSS 3.1

6.1 medium

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
CWE: CWE-601
Published: 2023-11-21
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

owncloud:oauth2

References

https://owncloud.com/security-advisories/subdomain-validation-bypass/
https://owncloud.org/security
https://owncloud.com/security-advisories/subdomain-validation-bypass/
https://owncloud.org/security

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