Joost Grunwald

Joost Grunwald is a security researcher credited with 2 disclosed vulnerabilities in the WordSec WordPress vulnerability database, ranked #1,608 of 3,878 contributors. Their disclosures were published between 2023 and 2026.

Their research concentrates on Improper Authentication, which accounts for 1 of their findings (50%). Other recurring categories include Protection Mechanism Failure. The average CVSS score across these disclosures is 6.3, peaking at 7.3. Severity breakdown: 0 critical and 1 high.

The most affected software includes Headless SSO Plugin for WP (1), Theme My Login 2fa (1), across 2 distinct plugins, themes and core versions in total.

All 2 disclosed issues have since received a vendor fix.

2023202420252026
Critical
High
Medium
Low
Global Rank

#1608

of 3,878 researchers

Vulns

2

Critical0
High1
Medium1
Low0
Affected Assets

2

2plugins
Avg CVSS

6.3

Average score of vulnerabilities

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