Fedora 39 update for mediawiki



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-36674
CVE-2023-36675
CWE-ID CWE-434
CWE-79
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

mediawiki
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Arbitrary file upload

EUVDB-ID: #VU77906

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-36674

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Exploit availability: No

Description

The vulnerability allows a remote user to upload dangerous files to the server.

The vulnerability exists due to insufficient validation of file during file upload in Manualthumb. A remote user can upload dangerous files on the server.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 39

mediawiki: before 1.39.4-1.fc39

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2023-7e9d6015f6


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Cross-site scripting

EUVDB-ID: #VU77907

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-36675

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

Exploit availability: No

Description

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 BlockLogFormatter.php in BlockLogFormatter. 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.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 39

mediawiki: before 1.39.4-1.fc39

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2023-7e9d6015f6


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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