Kacper Rybczyński
Kacper Rybczyński is a security researcher credited with 2 disclosed vulnerabilities in the WordSec WordPress vulnerability database, ranked #1,358 of 3,501 contributors. The disclosure was published in 2026.
Their research concentrates on Cross-Site Scripting, which accounts for 2 of their findings (100%). The average CVSS score across these disclosures is 7.2, peaking at 7.2. Severity breakdown: 0 critical and 2 high.
The most affected software includes Ultimate Auction Pro (2), across 1 distinct plugins, themes and core versions in total.
None of the 2 disclosed issues have a published fix yet.
2026
Critical
High
Medium
Low
Global Rank
#1358
of 3,501 researchers
Vulns
2
Critical0
High2
Medium0
Low0
Affected Assets
1
1plugin
Avg CVSS
7.2
Average score of vulnerabilities
Researcher Submissions
2 records
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