63n0

63n0 is a security researcher credited with 9 disclosed vulnerabilities in the WordSec WordPress vulnerability database, ranked #489 of 3,515 contributors. Their disclosures were published between 2024 and 2025. The most productive year was 2025, with 8 findings.

Their research concentrates on Cross-Site Scripting, which accounts for 6 of their findings (67%). Other recurring categories include Deserialization Of Untrusted Data, Unrestricted Upload Of File With Dangerous Type. The average CVSS score across these disclosures is 6.2, peaking at 7.5. Severity breakdown: 0 critical and 2 high.

The most affected software includes Welcart e-Commerce (2), Contact Form by Supsystic (1), Embed Any Document (1), across 8 distinct plugins, themes and core versions in total.

7 of the 9 disclosed issues have a vendor fix, while 2 remain unpatched.

20242025
Critical
High
Medium
Low
Global Rank

#489

of 3,515 researchers

Vulns

9

Critical0
High2
Medium7
Low0
Affected Assets

8

8plugins
Avg CVSS

6.2

Average score of vulnerabilities

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