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Vulnerabilities

Vulnerability · CVE-2023-0586

All in One SEO Pack plugin for WordPress Stored Cross-Site Scripting Vulnerability

Published Feb 24, 2023 · catalog updated Feb 24, 2023 · All in One SEO

Patch now

CVE-2023-0586 is in the CISA known-exploited catalog. Confirm All in One SEO against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (All in One SEO).
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
2.53%
Remediation
Remediation guidance
Affected products
stated all_in_one_seo · vendor aioseo all_in_one_seo

The All in One SEO Pack plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple parameters in versions up to, and including, 4.2.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with Contributor+ role to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated all_in_one_seo<= 4.2.9
  • vendor aioseo all_in_one_seoversion unspecified

How to fix CVE-2023-0586

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-0586 is in the CISA known-exploited catalog. Confirm All in One SEO against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with <= 4.2.9. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 2.53%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 24, 2023 · VulnCheck KEV

    Detected

    The All in One SEO Pack plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple parameters in versions up to, and including, 4.2.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with Contributor+ role to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

  2. Feb 24, 2023 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2023-0586

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-0586

    30-day exploitation probability 2.5%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2023-0586

    The All in One SEO Pack plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple parameters in versions up to, and including, 4.2.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with Contributo

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.