CVE-2026-8857 PUBLISHED

Full RCE using EasyTimeline Extension

Assigner: wikimedia-foundation
Reserved: 18.05.2026 Published: 01.07.2026 Updated: 01.07.2026

A vulnerability in Wikimedia Foundation timeline.

This vulnerability is associated with program files scripts/EasyTimeline.Pl, includes/Timeline.Php.

This issue affects timeline: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 0

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Vendor	Wikimedia Foundation
Product	timeline
Versions	Default: unaffected affected from * to 1.46.0, 1.45.4, 1.44.6, 1.43.9 (excl.)