What is CVE-2026-78850?

CVE-2026-78850 is a medium-severity vulnerability in N/a, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.0/10. Published 2026-10-15.

How severe is CVE-2026-78850?

Medium severity. CVSS v3 base score is 5.0 out of 10.

SSRF in N/a

CVE-2026-78850

An issue in Matomo v.5.11.2 allows a remote attacker to obtain sensitive information via the SiteContentDetector / SitesManager component

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-10-15 · last modified 2026-10-15.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

github.com/matomo-org/matomo
github.com/matomo-org/matomo/tree/5.11.2
github.com/matomo-org/matomo/security/advisories
matomo.org/
github.com/SLO-CYBER-SEC/CVE-2026-78850

Frequently asked questions

What is CVE-2026-78850?: CVE-2026-78850 is a medium-severity vulnerability in N/a, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.0/10. Published 2026-10-15.
How severe is CVE-2026-78850?: Medium severity. CVSS v3 base score is 5.0 out of 10.