High severity · published Jan 15, 2017
CVE-2017-5493
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…
7.5
CVSS
2.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.9% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
WordPress · WordPress
through 4.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-5493
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-5493
www.debian.org
http://www.debian.org/security/2017/dsa-3779
Mailing List
http://www.openwall.com/lists/oss-security/2017/01/14/6
www.securityfocus.com
http://www.securityfocus.com/bid/95401
www.securitytracker.com
http://www.securitytracker.com/id/1037591
Release Notes
https://codex.wordpress.org/Version_4.7.1
Patch
https://github.com/WordPress/WordPress/commit/cea9e2dc62abf777e06b12ec4ad9d1aaa49b29f4
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