CVE-2026-100382: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Wikimedia Foundation Mediawiki

Executive brief

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.

References

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