CVE-2026-8857

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 v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://phabricator.wikimedia.org/T426631	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mediawiki:mediawiki::::::::
	cpe:2.3:a:mediawiki:mediawiki::::::::
	cpe:2.3:a:mediawiki:mediawiki::::::::

History

09 Jul 2026, 17:20

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8
CPE		cpe:2.3:a:mediawiki:mediawiki::::::::
First Time		Mediawiki mediawiki Mediawiki
References	~~() https://phabricator.wikimedia.org/T426631 -~~	() https://phabricator.wikimedia.org/T426631 - Exploit, Third Party Advisory

01 Jul 2026, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-01 16:16

Updated : 2026-07-09 17:20

NVD link : CVE-2026-8857

Mitre link : CVE-2026-8857

CVE.ORG link : CVE-2026-8857

JSON object : View

Products Affected

mediawiki

mediawiki

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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