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Vulnerability Details :

CVE-2026-8857

Summary
Assigner-wikimedia-foundation
Assigner Org ID-c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Published At-01 Jul, 2026 | 15:08
Updated At-01 Jul, 2026 | 15:49
Rejected At-
Credits

Full RCE using EasyTimeline Extension

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:wikimedia-foundation
Assigner Org ID:c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Published At:01 Jul, 2026 | 15:08
Updated At:01 Jul, 2026 | 15:49
Rejected At:
▼CVE Numbering Authority (CNA)
Full RCE using EasyTimeline Extension

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.

Affected Products
Vendor
Wikimedia FoundationWikimedia Foundation
Product
timeline
Repo
https://gerrit.wikimedia.org/g/mediawiki/extensions/timeline/+/refs/heads/master
Program Files
  • scripts/EasyTimeline.pl
  • includes/Timeline.php
Default Status
unaffected
Versions
Affected
  • From * before 1.46.0, 1.45.4, 1.44.6, 1.43.9 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-94CWE-94
Type: CWE
CWE ID: CWE-94
Description: CWE-94
Metrics
VersionBase scoreBase severityVector
4.00.0NONE
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
Version: 4.0
Base score: 0.0
Base severity: NONE
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://phabricator.wikimedia.org/T426631
N/A
Hyperlink: https://phabricator.wikimedia.org/T426631
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Published At:01 Jul, 2026 | 16:16
Updated At:01 Jul, 2026 | 18:18

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.00.0NONE
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/E:X/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:X/AU:X/R:X/V:X/RE:X/U:X
N/A
Type: Secondary
Version: 4.0
Base score: 0.0
Base severity: NONE
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/E:X/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:X/AU:X/R:X/V:X/RE:X/U:X
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-94Secondaryc4f26cc8-17ff-4c99-b5e2-38fc1793eacc
CWE ID: CWE-94
Type: Secondary
Source: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://phabricator.wikimedia.org/T426631c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
N/A
Hyperlink: https://phabricator.wikimedia.org/T426631
Source: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Resource: N/A

Change History

0
Information is not available yet

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