CVE-2026-103584

attacker-controlled javascript license URL via XSS

Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki CommonsMetadata extension allows Cross-Site Scripting (XSS). This issue affects MediaWiki CommonsMetadata extension: 1.46, 1.45, and 1.43.

Affected

The Wikimedia Foundation · MediaWiki CommonsMetadata extension

CVSS v4.0 CNA

1.1 LOWCVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/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:C/RE:M/U:Amber

EPSS

0.29% chance of exploitation in the next 30 days, 20th percentile

Published

2026-09-30

Updated

2026-10-01

Proof-of-concept exploits (1)

• BomboBombone/CVE-2026-1035840★ · 2026-10-01

References

• CVE Record
• NVD entry

Related

• CVE-2026-103437
• CVE-2026-103440
• CVE-2026-103441
• CVE-2026-103442
• CVE-2026-103445
• CVE-2026-103446