Brian Sans-Souci (liardom)
Brian Sans-Souci (liardom) is a security researcher credited with 33 disclosed vulnerabilities in the WordSec WordPress vulnerability database, ranked #173 of 3,515 contributors. Their disclosures were published between 2024 and 2025. The most productive year was 2025, with 27 findings.
Their research concentrates on Missing Authorization, which accounts for 9 of their findings (27%). Other recurring categories include Cross-Site Scripting, Cross-Site Request Forgery (CSRF). The average CVSS score across these disclosures is 6.1, peaking at 8.8. Severity breakdown: 0 critical and 7 high.
The most affected software includes GiveWP (4), Download Manager (2), MStore API (2), across 26 distinct plugins, themes and core versions in total.
30 of the 33 disclosed issues have a vendor fix, while 3 remain unpatched. The most severe finding, "Sunshine Photo Cart <= 3.4.11 - Authenticated (Subscriber+) Privilege Escalation", scores 8.8 out of 10.
#173
of 3,515 researchers
33
26
6.1
Average score of vulnerabilities
Researcher Submissions
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