CVEvulnerability

CVE-2020-26877

6.1 MEDIUM Published 2022-06-29 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-06-29
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0 ([email protected])
5.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:N
Weaknesses
CWE-601

Description

ApiFest OAuth 2.0 Server 0.3.1 does not validate the redirect URI in accordance with RFC 6749 and is susceptible to an open redirector attack. Specifically, it directly sends an authorization code to the redirect URI submitted with the authorization request, without checking whether the redirect URI is registered by the client who initiated the request. This allows an attacker to craft a request with a manipulated redirect URI (redirect_uri parameter), which is under the attacker's control, and consequently obtain the leaked authorization code when the server redirects the client to the manipulated redirect URI with an authorization code. NOTE: this is similar to CVE-2019-3778.

Affected configurations

• apifest oauth 2.0 server 0.3.1

Related

Weakness · CWE (1)

  • CWE-601 URL Redirection to Untrusted Site weakness

References