Naoya Takahashi (nakko)

Naoya Takahashi (nakko) is a security researcher credited with 21 disclosed vulnerabilities in the WordSec WordPress vulnerability database, ranked #242 of 3,515 contributors. Their disclosures were published between 2025 and 2026. The most productive year was 2026, with 12 findings.

Their research concentrates on Cross-Site Scripting, which accounts for 10 of their findings (48%). Other recurring categories include SQL Injection, PHP Remote File Inclusion. The average CVSS score across these disclosures is 7.0, peaking at 8.8. Severity breakdown: 0 critical and 15 high.

The most affected software includes Geo Mashup (3), WPLP Cookie Consent (2), Asgaros Forum (1), across 18 distinct plugins, themes and core versions in total.

20 of the 21 disclosed issues have a vendor fix, while 1 remain unpatched. The most severe finding, "WPCOM Member <= 1.7.14 - Authenticated (Contributor+) Local File Inclusion via Shortcode", scores 8.8 out of 10.

20252026
Critical
High
Medium
Low
Global Rank

#242

of 3,515 researchers

Vulns

21

Critical0
High15
Medium6
Low0
Affected Assets

18

18plugins
Avg CVSS

7.0

Average score of vulnerabilities

Researcher Submissions

21 records
2026-09-08 19:57CVE-2026-14989
7.2
High
Naoya Takahashi (nakko)Yes
2026-08-14 00:00CVE-2026-13360
7.2
High
Naoya Takahashi (nakko)Yes
2026-07-07 23:40CVE-2026-6820
7.2
High
Naoya Takahashi (nakko)Yes
2026-06-15 17:09CVE-2026-15284
6.4
Medium
Naoya Takahashi (nakko)Yes
2026-06-12 22:03CVE-2026-5513
7.2
High
Naoya Takahashi (nakko)Yes
2026-05-29 20:40CVE-2026-9757
7.5
High
Naoya Takahashi (nakko)Yes
2026-05-02 15:41CVE-2026-5063
7.2
High
Naoya Takahashi (nakko)Yes
2026-05-01 00:00CVE-2026-4061
7.5
High
Naoya Takahashi (nakko)Yes
2026-05-01 00:00CVE-2026-4060
7.5
High
Naoya Takahashi (nakko)Yes
2026-05-01 00:00CVE-2026-4062
7.5
High
Naoya Takahashi (nakko)Yes
Showing 1–10 of 21 reports

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