DataTransfer depends on phpspreadsheet version vulnerable to CVE-2026-59933 (XLS/OLE memory exhaustion)

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-100242
StatePUBLISHED
Assignerwikimedia-foundation
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-29 17:17:01 UTC
Updated2026-10-01 19:17:16 UTC
DescriptionDependency on Vulnerable Third-Party Component and Uncontrolled Resource Consumption vulnerability in Wikimedia Foundation Mediawiki - DataTransfer Extension allows Excessive Allocation. This issue affects Mediawiki - DataTransfer Extension: from 1.46.0 before 1.47.0.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.003390000 probability, percentile 0.250250000 (date 2026-10-04)

Problem Types: CWE-400 | CWE-1395 CWE-1395 Dependency on Vulnerable Third-Party Component | CWE-400 CWE-400 Uncontrolled Resource Consumption

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Wikimedia Foundation Mediawiki - DataTransfer Extension affected 1.46.0 1.47.0 semver Not specified

References

ReferenceSourceLinkTags
github.com/advisories/GHSA-xh5m-36r6-47m3 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
gerrit.wikimedia.org/r/q/Ibc4a9070c2425b690bc767a882e4c35046a39be7 c4f26cc8-17ff-4c99-b5e2-38fc1793eacc gerrit.wikimedia.org
phabricator.wikimedia.org/T433275 c4f26cc8-17ff-4c99-b5e2-38fc1793eacc phabricator.wikimedia.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: AKulbii (en)

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