Paper/Archive/CVE-2026-100382

CVE-2026-100382

Wikimedia Foundation Mediawiki - ExternalData Extension — Unauthenticated remote code execution through wikitext in ExternalData

EPSS 1%CVSS 10.0

critical.is priorityof 100

CVSS 10.0 (CNA)10.0 / 10 × 3030.0 Not in CISA KEV+300.0 EPSS percentile 68.6.686 × 2013.7 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Wikimedia Foundation Mediawiki - ExternalData Extension allows OS Command Injection. This issue affects Mediawiki - ExternalData Extension: from * before 3.7.

Affected

ProductAffectedFixed inSource

Mediawiki - ExternalData Extension< 3.73.7CNA

Scores by source

wikimedia-foundation (CNA)10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refphabricator.wikimedia.org/T434961 refgerrit.wikimedia.org/r/c/mediawiki/extensions/ExternalData/+/1326012