Vulnerability Report

CVE-2026-0671

Title: XSS in MediaWiki - UploadWizard extension

XSS

Proof Of Concept

No public PoC currently indexed for CVE-2026-0671.

CWE Category CWE-79
Published Date Jan 08, 2026
Modified Date Jan 15, 2026
Exploit Status Not Found
Score 6.1 CVSS v
Exploit Probability (EPSS)
0.03%

Vulnerability Summary

CVE-2026-0671: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki - UploadWizard extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki - UploadWizard extension: 1.45, 1.44, 1.43, 1.39.

Impacted Vendors

W
wikimedia 1

Reference Links

https://gerrit.wikimedia.org/r/q/I16de2211594ea9a686868ad7789f9879bf981fa1 https://phabricator.wikimedia.org/T407157
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity MEDIUM
6.1
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-0671 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Stack

No specific products linked.