SB2023100344 - Multiple vulnerabilities in MediaWiki
Published: October 3, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 secuirty vulnerabilities.
1) Spoofing attack (CVE-ID: N/A)
The vulnerability allows a remote user to perform spoofing attack.
The vulnerability exists due to incorrect processing of permissions, which leads to users with incorrect permissions to be incorrectly displayed.
2) Infinite loop (CVE-ID: N/A)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop for self-redirects. A remote attacker can cause denial of service conditions.
3) Cross-site scripting (CVE-ID: N/A)
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. A remote attacker 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.
4) Spoofing attack (CVE-ID: N/A)
The vulnerability allows a remote user to perform spoofing attack.
The vulnerability exists due to vector-intro-page can display an incorrect title. A remote attacker can perform a spoofing attack.
5) Cross-site scripting (CVE-ID: N/A)
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 passed via "youhavenewmessagesmanyusers" and "youhavenewmessages" messages. A remote attacker can 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.
6) Stored cross-site scripting (CVE-ID: CVE-2023-3550)
The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in Special:Upload when handling XML files. A remote user can upload a specially crafted XML file and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
7) Security features bypass (CVE-ID: N/A)
The vulnerability allows a remote user to bypass implemented security restrictions.
The vulnerability exists due to diff-multi-sameuser ("X
intermediate revisions by the same user not shown") ignores username
suppression. A remote user can bypass implemented security restrictions.
Remediation
Install update from vendor's website.