CVE-2024-21637

XSS in Authentik via JavaScript-URI as Redirect URI and form_post Response Mode

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Authentik is an open-source Identity Provider. Authentik is a vulnerable to a reflected Cross-Site Scripting vulnerability via JavaScript-URIs in OpenID Connect flows with `response_mode=form_post`. This relatively user could use the described attacks to perform a privilege escalation. This vulnerability has been patched in versions 2023.10.6 and 2023.8.6.

Authentik es un proveedor de identidades de código abierto. Authentik es afectado por una vulnerabilidad de cross site scripting reflejada a través de URI de JavaScript en flujos de OpenID Connect con `response_mode=form_post`. Este relativamente usuario podría utilizar los ataques descritos para realizar una escalada de privilegios. Esta vulnerabilidad ha sido parcheada en las versiones 2023.10.6 y 2023.8.6.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-12-29 CVE Reserved
2024-01-11 CVE Published
2024-08-01 CVE Updated
2025-01-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (3)

URL	Tag	Source
https://github.com/goauthentik/authentik/security/advisories/GHSA-rjpr-7w8c-gv3j	Mitigation

URL	Date	SRC

URL	Date	SRC
https://github.com/goauthentik/authentik/releases/tag/version%2F2023.10.6	2024-01-16
https://github.com/goauthentik/authentik/releases/tag/version%2F2023.8.6	2024-01-16

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Goauthentik Search vendor "Goauthentik"		Authentik Search vendor "Goauthentik" for product "Authentik"				>= 2023.8.0 < 2023.8.6 Search vendor "Goauthentik" for product "Authentik" and version " >= 2023.8.0 < 2023.8.6"		-		Affected
Goauthentik Search vendor "Goauthentik"		Authentik Search vendor "Goauthentik" for product "Authentik"				>= 2023.10.0 < 2023.10.6 Search vendor "Goauthentik" for product "Authentik" and version " >= 2023.10.0 < 2023.10.6"		-		Affected