CVE-2015-8627

5.3 mediumEPSS 1.4%

Medium (5.3) in mediawiki mediawiki. EPSS 1.4% chance of exploitation in the next 30 days.

MediaWiki before 1.23.12, 1.24.x before 1.24.5, 1.25.x before 1.25.4, and 1.26.x before 1.26.1 do not properly normalize IP addresses containing zero-padded octets, which might allow remote attackers to bypass intended access restrictions by using an IP address that was not supposed to have been allowed.

Severity

CVSS 3.0

5.3 medium

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-10-31)
CWE: CWE-284
Published: 2017-03-23
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mediawiki:mediawiki

References

http://www.openwall.com/lists/oss-security/2015/12/21/8
http://www.openwall.com/lists/oss-security/2015/12/23/7
https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-December/000186.html
https://phabricator.wikimedia.org/T97897
http://www.openwall.com/lists/oss-security/2015/12/21/8

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