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5.3

WP Cerber before 8.9.3 allows bypass of /wp-json access control via a trailing ? character.

CVE-2021-37598 · published 5 years ago
Summary

WP Cerber before 8.9.3 allows bypass of /wp-json access control via a trailing ? character.

What to do
  • Update wpcerber wp_cerber to version 8.9.3 or later.
Affected software
VendorProductAffected versions
wpcerber wp_cerber < 8.9.3
cpe:2.3:a:wpcerber:wp_cerber:*:*:*:*:*:*:*:*
Original advisory text
WP Cerber before 8.9.3 allows bypass of /wp-json access control via a trailing ? character.
WP Cerber before 8.9.3 allows bypass of /wp-json access control via a trailing ? character.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.3 Medium
Exploitation
2% chance of attack within 30 days
Type
CWE-863Incorrect Authorization
Timeline
Published19 Aug 2021
Updated29 Oct 2026
First seen29 Sep 2026
Sources
CVE-2021-37598 · NVD
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