Is CVE-2026-103442 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in The Wikimedia Foundation MediaWiki Centralauth Extension

CVE-2026-103442

External control of system or configuration setting vulnerability in The Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection. This issue affects MediaWiki CentralAuth extension: 1.46, 1.45, and 1.43.

Published 2026-09-30 · last modified 2026-09-30.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

The Wikimedia Foundation MediaWiki Centralauth Extension — versions 1.43, 1.45, 1.46

Weakness classification (CWE)

CWE-15

Public proof-of-concept exploits

BomboBombone/CVE-2026-103442

References

Frequently asked questions

What is CVE-2026-103442?: CVE-2026-103442 is a vulnerability in The Wikimedia Foundation MediaWiki Centralauth Extension, classified under CWE-15. Published 2026-09-30.
Is CVE-2026-103442 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.