PT-2021-21730 · Wp Cerber · Wp Cerber

Ilyass El Hadi · CVE-2021-37598 · Published 2021-08-19 · Updated 2026-01-13

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions WP Cerber versions prior to 8.9.3

Description The issue allows bypass of /wp-json access control via a trailing ? character.

Recommendations For versions prior to 8.9.3, update to version 8.9.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the /wp-json endpoint to minimize the risk of exploitation.

Exploit

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2021-37598

Affected Products

Wp Cerber

References · 7

• 🔥 https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0024/FEYE-2021-0024.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-37598 · Security Note
• https://osv.dev/vulnerability/CVE-2021-37598 · Vendor Advisory
• https://github.com/fireeye/Vulnerability-Disclosures · Note
• https://t.me/cibsecurity/27620 · Telegram Post
• https://twitter.com/pdnuclei_bot/status/2011106000007545340 · Twitter Post
• https://t.me/cvenotify/19807 · Telegram Post