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Slim Seo vulnerabilities

5 tracked advisories · slug slim-seo

Important: Slim Seo appearing in this catalog does not mean your website is affected. Exposure depends on your installed version. How SiteRespond intelligence works

Tracked advisories

5

Latest advisory

3 August 2026

CISA KEV matches

0

In this WordPress feed

WordPress slug

slim-seo

Plugin

What this means for Slim Seo

This catalog lists 5 known advisories affecting Slim Seo. The most recent was published on 3 August 2026. If you use this software, compare your installed version against the affected ranges on each advisory and update to a fixed release outside those ranges. SiteRespond Defence checks your actual installed version when the plugin is connected — listing here does not by itself mean your site is vulnerable.

Latest issues

  • Slim SEO <= 4.9.10 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary Post Meta Disclosure

    This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.

    Published 3 August 2026

  • Slim SEO <= 4.9.8 - Authenticated (Contributor+) Insufficient Authorization to Private Content Disclosure via 'object.ID' Parameter

    This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.

    Published 30 June 2026

  • Slim SEO – A Fast & Automated SEO Plugin For WordPress <= 4.6.2 - Missing Authorization

    This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.

    Published 25 June 2026

Vulnerability types

  • SQL injection1
  • Cross-site scripting1

Authentication (inferred from titles)

  • Unauthenticated0
  • Authenticated4
  • Unspecified1

Advisory history

Known Slim Seo advisories published by month.

All advisories

Check whether your installed version is affected

SiteRespond Defence matches your installed Slim Seo version against this catalog when the Defence plugin is connected to your WordPress site.

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