CVE-2020-27621

MediumCVSS 4.3/10Last modified Jun 17, 2026

Description

The FileImporter extension in MediaWiki through 1.35.0 was not properly attributing various user actions to a specific user's IP address. Instead, for various actions, it would report the IP address of an internal Wikimedia Foundation server by omitting X-Forwarded-For data. This resulted in an inability to properly audit and attribute various user actions performed via the FileImporter extension.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://gerrit.wikimedia.org/r/q/I24a240253c7a5c66dd493a68e8c23d95a17e1b21Exploit, Patch, Vendor Advisory
https://phabricator.wikimedia.org/T265810Exploit, Patch, Vendor Advisory
https://gerrit.wikimedia.org/r/q/I24a240253c7a5c66dd493a68e8c23d95a17e1b21Exploit, Patch, Vendor Advisory
https://phabricator.wikimedia.org/T265810Exploit, Patch, Vendor Advisory

Timeline

Published: Oct 22, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

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