What’s Vulnerable › Vulnerabilities

CVE-2026-78850

• Severity: medium (CVSS 5.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-15 · updated 2026-10-26
• Weakness: CWE-918

Description

An issue in Matomo v.5.11.2 allows a remote attacker to obtain sensitive information via the SiteContentDetector / SitesManager component. NOTE: the Supplier disputes the relevance of this report because the site administrator is a trusted party, and would not plausibly set main_url to a URL that offers additional information to an adversary.

References

• https://github.com/SLO-CYBER-SEC/CVE-2026-78850
• https://github.com/matomo-org/matomo
• https://github.com/matomo-org/matomo/pull/24834
• https://github.com/matomo-org/matomo/security/advisories
• https://github.com/matomo-org/matomo/tree/5.11.2
• https://matomo.org/
• https://github.com/SLO-CYBER-SEC/CVE-2026-78850

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