CVE-2026-78850: Matomo · Server-Side Request Forgery (SSRF)
Source CVE Database V5
Not known to be exploited · CVSS 5.0 Medium.
Data as of 26 Oct 2026, 14:18 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 15 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
In the meantime, restrict access to the affected components and limit privileges to trusted users only.
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
- github.com/matomo-org/matomo (opens in a new tab)
- github.com/matomo-org/matomo/tree/5.11.2 (opens in a new tab)
- github.com/matomo-org/matomo/security/advisories (opens in a new tab)
- matomo.org (opens in a new tab)
- github.com/SLO-CYBER-SEC/CVE-2026-78850 (opens in a new tab)
- github.com/matomo-org/matomo/pull/24834 (opens in a new tab)