Known vulnerabilities in Slim SEO – A Fast & Automated SEO Plugin For WordPress

A full-featured SEO plugin for WordPress that's lightweight, blazing fast with minimum configuration. No bloats and just works!

5Reported vulnerabilities

6.4Highest CVSS score

4.9.11Latest version

70,000+Active installs

What to do now

Update Slim SEO – A Fast & Automated SEO Plugin For WordPress to 4.9.11 or later. 5 of these have a fixed version available. Updating resolves them.

Plugin last updated: July 28, 2026 / Tested up to WordPress: 7.0.4 / View on wordpress.org

Reported vulnerabilities

Ordered by how urgently they need attention — whether a vulnerability is actually being exploited, and how likely exploitation is, rather than CVSS severity alone.

CVE	Severity	Exploit probability next 30 days	Affected versions	Fixed in	Published
CVE-2025-4611	Medium 6.4	0.5%	0 to 4.5.3 (inclusive)	`4.5.4`	May 21, 2025
CVE-2025-49854	Medium 4.9	0.3%	4.5.4 and earlier	`4.5.5`	June 12, 2025
CVE-2026-16957	Medium 4.3	0.2%	4.9.10 and earlier	`4.9.11`	August 3, 2026
CVE-2026-12408	Medium 4.3	0.4%	0 to 4.9.8 (inclusive)	`4.9.9`	July 1, 2026
CVE-2026-57429	Medium 4.3	0.3%	4.6.2 and earlier	`4.7.0`	June 25, 2026

Sources: vulnerability records from NVD, exploitation from CISA KEV, exploit probability from EPSS. Affected versions come from CPE ranges or from the reporting CNA.