CVE-2026-100382

critical · 10

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.

CVSS

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EPSS (exploit prob.)

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EPSS percentile

2026-09-25

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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

Weaknesses

CWE-78

References

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/ExternalData/+/1326012
https://phabricator.wikimedia.org/T434961

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-100382