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Vulnerability Details :

CVE-2026-58025

Summary
Assigner-wikimedia-foundation
Assigner Org ID-c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Published At-01 Jul, 2026 | 15:23
Updated At-01 Jul, 2026 | 15:51
Rejected At-
Credits

Remote Code Execution via Unsafe Deserialization in LogItem Import

Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php. This issue affects MediaWiki: 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 | 15:23
Updated At:01 Jul, 2026 | 15:51
Rejected At:
▼CVE Numbering Authority (CNA)
Remote Code Execution via Unsafe Deserialization in LogItem Import

Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

Affected Products
Vendor
Wikimedia FoundationWikimedia Foundation
Product
MediaWiki
Repo
https://gerrit.wikimedia.org/g/mediawiki/core/+/refs/heads/master
Program Files
  • includes/Import/WikiImporter.php
  • includes/Import/WikiRevision.php
  • includes/Logging/LogEntryBase.php
  • https://phabricator.wikimedia.org/T422244
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-502CWE-502 Deserialization of untrusted data
CWECWE-94CWE-94
Type: CWE
CWE ID: CWE-502
Description: CWE-502 Deserialization of untrusted data
Type: CWE
CWE ID: CWE-94
Description: CWE-94
Metrics
VersionBase scoreBase severityVector
4.05.9MEDIUM
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L
Version: 4.0
Base score: 5.9
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://phabricator.wikimedia.org/T422244
N/A
Hyperlink: https://phabricator.wikimedia.org/T422244
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

Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php. This issue affects MediaWiki: 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
Secondary4.05.9MEDIUM
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L/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: 5.9
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L/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-502Secondaryc4f26cc8-17ff-4c99-b5e2-38fc1793eacc
CWE ID: CWE-94
Type: Secondary
Source: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
CWE ID: CWE-502
Type: Secondary
Source: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://phabricator.wikimedia.org/T422244c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
N/A
Hyperlink: https://phabricator.wikimedia.org/T422244
Source: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

1Records found
CVE-2026-8857
Matching Score-6
Assigner-The Wikimedia Foundation
ShareView Details
Matching Score-6
Assigner-The Wikimedia Foundation
CVSS Score-Not Assigned
EPSS-0.27% / 18.32%
||
7 Day CHG~0.00%
Published-01 Jul, 2026 | 15:08
Updated-01 Jul, 2026 | 18:18
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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.

Action-Not Available
Vendor-Wikimedia Foundation
Product-timeline
CWE ID-CWE-94
Improper Control of Generation of Code ('Code Injection')
Details not found