---
id: CVE-2026-103048
title: >-
  URL redirection to untrusted site ('open redirect') vulnerability in The
  Wikimedia Foundation Mediawiki - Collection extension allows Fake the Source
  of Data.


  This issue affects Mediawiki - Collection extension: before 1.46.1, 1.45.5, 1…
summary: >-
  URL redirection to untrusted site ('open redirect') vulnerability in The
  Wikimedia Foundation Mediawiki - Collection extension allows Fake the Source
  of Data.


  This issue affects Mediawiki - Collection extension: before 1.46.1, 1.45.5, 1…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-601
vendor: The Wikimedia Foundation
product: Mediawiki - Collection extension
affected:
  - 'mediawiki_-_collection_extension < 1.46.1, 1.45.5, 1.43.10'
published: '2026-09-30'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T19:17:17.920'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103048'
references:
  - url: 'https://gerrit.wikimedia.org/r/c/1346083'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
  - url: 'https://phabricator.wikimedia.org/T321092'
    label: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-01T18:32:23.478420Z'
epss: 0.00147
epssPercentile: 0.03851
ingestedAt: '2026-09-29T23:52:50.550Z'
---

## Overview

URL redirection to untrusted site ('open redirect') vulnerability in The Wikimedia Foundation Mediawiki - Collection extension allows Fake the Source of Data.

This issue affects Mediawiki - Collection extension: before 1.46.1, 1.45.5, 1.43.10.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.