PT-2023-6729 · Mediawiki+2 · Mediawiki+2

Carlos Bello · CVE-2023-3550 · Published 2023-09-25 · Updated 2025-08-14

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions MediaWiki version 1.40.0

Description The issue exists due to the lack of protection for the web page structure. A remote attacker with a low-privileged user account can exploit this by sending a malicious link to the instance administrator, allowing them to become an administrator if the instance administrator allows XML file uploads. This can lead to a security breach.

Recommendations For MediaWiki version 1.40.0, restrict access to XML file uploads to prevent exploitation until a patch is available. As a temporary workaround, consider disabling XML file uploads to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALT-PU-2023-6419

ALT-PU-2024-11168

ALT-PU-2024-1228

BDU:2023-07505

BIT-MEDIAWIKI-2023-3550

CVE-2023-3550

DLA-3671-1

DSA-5520-1

MGASA-2024-0155

Affected Products

Alt Linux

Mediawiki

Red Os

References · 31

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3550.json · Exploit
• 🔥 https://fluidattacks.com/advisories/blondie · Exploit
• https://ubuntu.com/security/CVE-2023-3550 · Vendor Advisory
• https://debian.org/security/2023/dsa-5520 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-3671-1 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-5520-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-3550 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-3550 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-3550 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-07505 · Security Note
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• https://advisories.mageia.org/MGASA-2024-0155.html · Security Note
• https://osv.dev/vulnerability/BIT-mediawiki-2023-3550 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2024-0155 · Vendor Advisory