CVE-2017-5493

7.5 highEPSS 2.9%

wp-includes/ms-functions.php in the Multisite WordPress API in WordPress before 4.7.1 does not properly choose random numbers for keys, which makes it easier for remote attackers to bypass intended access restrictions via a crafted (1) site signup or (2) user signup.

Severity

CVSS 3.0

7.5 high

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

EPSS: 2.9% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-31)
CWE: CWE-338
Published: 2017-01-15
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

wordpress:wordpress

References

http://www.debian.org/security/2017/dsa-3779
http://www.openwall.com/lists/oss-security/2017/01/14/6
http://www.securityfocus.com/bid/95401
http://www.securitytracker.com/id/1037591
https://codex.wordpress.org/Version_4.7.1

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