Answer in brief
CVE-2026-103047 records a Medium severity (CVSS 6.1) vulnerability in XSS through i18n message in CentralAuth. The current sources do not mark it as known exploited. The current feed maps The Wikimedia Foundation/Mediawiki - CentralAuth extension (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps The Wikimedia Foundation/Mediawiki - CentralAuth extension (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| The Wikimedia Foundation/Mediawiki - CentralAuth extensiongeneric | >=0 <1.46.1 1.45.5 1.43.10 | 1.46.1, 1.45.5, 1.43.10, 1.46.1 |
Published upstream
Sep 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 29, 2026
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth extension allows Stored XSS. This issue affects Mediawiki - CentralAuth extension: before 1.46.1, 1.45.5, 1.43.10.
Quoted source text, attributed separately from HOL analysis.