6.1

CVE-2026-103048: the wikimedia foundation mediawiki - collection extension Open Redirect

CVSS: 6.1v3.1MediumAwaiting analysis
AliasesUBUNTU-CVE-2026-103048
Published 29-09-2026Last modified 01-10-2026
Open JSON

Vulnerability summary

CVE-2026-103048 is a medium (CVSS 6.1) Open Redirect vulnerability in the wikimedia foundation mediawiki - collection extension. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.5% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.15%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 29-09-2026
    PublishedVulnerability first disclosed.
  2. 01-10-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

30-09-202621-10-2026
EPSS score
0.15%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

The wikimedia foundation1 product
Ubuntu1 product
  • mediawikiAll versions (No fix recorded)

2 vendors · 2 products

References

4 links