WordPress Core < 4.7.1 - Weak Multi-Site Activation Key for User and Site Signup

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
CVE CVE-2017-5493
CVSS Medium (5.3)
Publicly Published January 11, 2017
Last Updated January 22, 2024
Researcher Jack
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.

References

1 affected software package

Software Type Core
Software Slug wordpress (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 3.7
  • 3.7 - 3.7.16
  • 3.8 - 3.8.16
  • 3.9 - 3.9.14
  • 4.0 - 4.0.13
  • 4.1 - 4.1.13
  • 4.2 - 4.2.10
  • 4.3 - 4.3.6
  • 4.4 - 4.4.5
  • 4.5 - 4.5.4
  • 4.6 - 4.6.1
  • 4.7 - 4.7.0
Patched Version
  • 3.7.17
  • 3.8.17
  • 3.9.15
  • 4.0.14
  • 4.1.14
  • 4.2.11
  • 4.3.7
  • 4.4.6
  • 4.5.5
  • 4.6.2
  • 4.7.1
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