CVE-2026-103440

pagetriagelist discloses suppressed reviewer usernames

Exposure of sensitive information through data queries vulnerability in The Wikimedia Foundation MediaWiki PageTriage extension allows Information Elicitation. This issue affects MediaWiki PageTriage extension: 1.46, 1.45, and 1.43.

Affected

The Wikimedia Foundation · MediaWiki PageTriage extension

CVSS v4.0 CNA

1.2 LOWCVSS:4.0/AV:N/AC:L/AT:P/PR:L/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:D/RE:M/U:Amber

EPSS

0.27% chance of exploitation in the next 30 days, 18th percentile

Published

2026-09-30

Proof-of-concept exploits (1)

• BomboBombone/CVE-2026-1034400★ · 2026-09-30

References

• CVE Record
• NVD entry

Related

• CVE-2026-103437
• CVE-2026-103441
• CVE-2026-103442
• CVE-2026-103445
• CVE-2026-103446
• CVE-2026-103584