404 SEO Redirection

404 SEO Redirection has 3 disclosed vulnerabilities in the WordSec catalog, reported between 2021 and 2026; 2 are fixed and 1 remains unpatched as of September 2026. Their average CVSS score is 7.5, and the most serious one scores 8.8 out of 10. Severity breakdown: 0 critical and 2 high. 2021 was the busiest year with 2 disclosures.

The most common weakness is Cross-Site Request Forgery (CSRF), behind 1 of the records (33%). Other recurring categories include Cross-Site Scripting, SQL Injection.

2 of the records (67%) have a vendor fix, while 1 remain unpatched. The oldest unresolved one dates back to 2026.

2 independent researchers contributed these findings, most of them (2) reported by R3N0.

Strategic Overview

Avg CVSSHigh

7.5/ 10

Patch Coverage67%

Open

Fixed

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Most severe open issueCVSS 7.5CVE-2016-20071

404 SEO Redirection <= 1.0 - Unauthenticated SQL Injection

Read the full analysis

Vulnerability Records

3 records


2026-06-15 00:00	404 SEO Redirection <= 1.0 - Unauthenticated SQL Injection 404 SEO Redirection <= 1.0	`CVE-2016-20071`	7.5 High	Ahmed Sherif (Deloitte)	No
2021-04-16 00:00	404 SEO Redirection <= 1.3 - Reflected Cross-Site Scripting 404 SEO Redirection <= 1.3	`CVE-2021-24325`	6.1 Medium	R3N0	Yes
2021-04-16 00:00	404 SEO Redirection <= 1.3 - Cross-Site Request Forgery 404 SEO Redirection <= 1.3	`CVE-2021-24324`	8.8 High	R3N0	Yes

Showing 1–3 of 3 reports