Threat intelligence

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

CVE-2026-16957 · slim-seo

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Slim Seo at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Slim SEO <= 4.9.10 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary Post Meta Disclosure
Affected software: slim-seo(Plugin)
Affected versions: ≤ 4.9.10
Authentication: Authenticated (see advisory title)
Vulnerability type: Other
CVE: CVE-2026-16957
Published: 3 August 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source: Data imported from Wordfence Intelligence (advisory 01ec3ba3-4627-4072-b15d-44e98c652836). Methodology and redistribution notes

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