Timeline Script Vulnerability in Wikimedia Foundation

Publication date: 2026-07-01

Last updated on: 2026-07-09

Assigner: wikimedia-foundation

Description

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 Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-01

Last Modified

2026-07-09

Generated

2026-07-21

AI Q&A

2026-07-01

EPSS Evaluated

2026-07-20

NVD

CVE-2026-8857

EUVD

EUVD-2026-41023

Affected Vendors & Products

Vendor	Product	Version / Range
mediawiki	mediawiki	From 1.44.0 (inc) to 1.44.6 (exc)
mediawiki	mediawiki	From 1.45.0 (inc) to 1.45.4 (exc)
mediawiki	mediawiki	From 1.43.0 (inc) to 1.43.9 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-94	The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Attack-Flow Graph

Executive Summary

This vulnerability exists in the Wikimedia Foundation's timeline component, specifically in the program files scripts/EasyTimeline.Pl and includes/Timeline.Php. It affects versions of the timeline software before 1.46.0, including 1.45.4, 1.44.6, and 1.43.9.

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