CVE-2026-103443: API permits session-seeded javascript URL XSS

Published Sep 30, 2026

Updated

Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki Collection (Book) extension allows XSS Targeting Non-Script Elements.

This issue affects MediaWiki Collection (Book) extension: 1.46, 1.45, and 1.43.

Affected Software

1 affected component

Wikimedia Foundation MediaWiki Collection (Book) extension=1.46, =1.45, =1.43

Event History

Sep 30, 2026

CVE Published

via MITRE·04:19 PM

Data Sourced

via MITRE·04:19 PM

DescriptionWeakness

Data Sourced

via NVD·05:16 PM

DescriptionSeverityWeakness

CVSS Score

1.1Low

Low Severity

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:D/RE:M/U:Amber

Security Metrics

Risk Score25

Severitylow(1.1)

CWE

8079

Timeline

PublishedSep 30, 2026

Updated

References

Company

Resources

Contact

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