Sebastian Albrecht (mySebbe)
Sebastian Albrecht (mySebbe) is a security researcher credited with 8 disclosed vulnerabilities in the WordSec WordPress vulnerability database, ranked #564 of 3,823 contributors. The disclosure was published in 2026.
Their research concentrates on Cross-Site Scripting, which accounts for 5 of their findings (63%). Other recurring categories include Improper Privilege Management, Missing Authorization. The average CVSS score across these disclosures is 7.2, peaking at 9.8. Severity breakdown: 1 critical and 5 high.
The most affected software includes European VAT Compliance Assistant… (1), HivePress (1), Product Designer App (1), across 8 distinct plugins, themes and core versions in total.
7 of the 8 disclosed issues have a vendor fix, while 1 remain unpatched. The most severe finding, "SimpleForm <= 3.10.0 - Unauthenticated Privilege Escalation to wp_capabilities Mass Assignment via simpleform_wp_register", scores 9.8 out of 10.
#564
of 3,823 researchers
8
8
7.2
Average score of vulnerabilities
Researcher Submissions
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