WordPress plugin vulnerabilities
SiteSEO - SEO Simplified vulnerabilities
Known security issues in the SiteSEO - SEO Simplified WordPress plugin, by affected version, with severity, CVE and the version that fixes each one.
- Plugin slug
- siteseo
- Latest version
- 1.4.2
- Active installs
- 500,000+
- Known vulnerabilities
- 4
- Data updated
- 2026-10-16 19:33 UTC
Check your version
This information comes from public vulnerability databases and may be incomplete or out of date. A plugin with no known vulnerabilities is not proof that it is secure; keep plugins updated and remove the ones you do not use.
Fixed in version 1.3.3 (2)
| Vulnerability | Severity | CVSS | Affected versions | Published |
|---|---|---|---|---|
| SiteSEO – SEO Simplified <= 1.3.2 - Improper Authorization to Authenticated Settings Reset CVE-2025-12814 · Source | Medium | 5.3 | < 1.3.3 | 2025-11-18 |
| SiteSEO – SEO Simplified <= 1.3.2 - Insecure Direct Object Reference to Sensitive Post Meta Disclosure CVE-2025-13085 · Source | Medium | 4.3 | < 1.3.3 | 2025-11-18 |
Fixed in version 1.3.2 (1)
| Vulnerability | Severity | CVSS | Affected versions | Published |
|---|---|---|---|---|
| SiteSEO – SEO Simplified <= 1.3.1 - Missing Authorization to Authenticated (Author+) Plugin Settings Update CVE-2025-12367 · Source | Medium | 4.3 | < 1.3.2 | 2025-10-31 |
Fixed in version 1.2.8 (1)
| Vulnerability | Severity | CVSS | Affected versions | Published |
|---|---|---|---|---|
| SiteSEO – SEO Simplified <= 1.2.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Broken Regex Expression CVE-2025-9277 · Source | Medium | 6.4 | < 1.2.8 | 0000-00-00 |
Check every plugin on your site automatically
Install the free Webforta WordPress Security plugin and Webforta matches every plugin, theme and WordPress version you run against known vulnerabilities, and tells you when a new one affects your site.
Sources and attribution
- Vulnerability data from WPVulnerability (WordPress, plugins, themes and server software). WPVulnerability data license.
- CVE records are copyright The MITRE Corporation. CVE Terms of Use.
- Known-exploited status from the CISA Known Exploited Vulnerabilities catalog. Public domain (U.S. Government work).
- Plugin names, latest versions and install counts from the WordPress.org plugin directory. WordPress is a trademark of the WordPress Foundation; Webforta is not affiliated with or endorsed by WordPress.org, WPVulnerability or the sources above.