SB2023072731 - Multiple vulnerabilities in Kirby
Published: July 27, 2023 Updated: September 8, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Cross-site scripting (CVE-ID: CVE-2023-38491)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data within MIME type auto-detection of uploaded files. A remote user can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
2) Improper Neutralization of Delimiters (CVE-ID: CVE-2023-38488)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to field injection in the KirbyData text storage handler. A remote user can overwrite content fields that the site developer did not intend to be modified.
3) XML External Entity injection (CVE-ID: CVE-2023-38490)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to insufficient validation of user-supplied XML input in the XML data handler. A remote attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.
Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.
4) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2023-38492)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to unlimited password lengths. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
5) Insufficient Session Expiration (CVE-ID: CVE-2023-38489)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to insufficient session expiration after a password change. A remote user can obtain or guess session token and gain unauthorized access to session that belongs to another user.
Remediation
Install update from vendor's website.
References
- https://github.com/getkirby/kirby/security/advisories/GHSA-8fv7-wq38-f5c9
- https://github.com/getkirby/kirby/security/advisories/GHSA-x5mr-p6v4-wp93
- https://github.com/getkirby/kirby/security/advisories/GHSA-q386-w6fg-gmgp
- https://github.com/getkirby/kirby/security/advisories/GHSA-3v6j-v3qc-cxff
- https://github.com/getkirby/kirby/security/advisories/GHSA-5mvj-rvp8-rf45