Vulnerability · CVE-2026-78850
An issue in Matomo v.5.11.2 allows a remote attacker to obtain sensitive information via the SiteContentDetector / SitesManager component
Published Oct 15, 2026 · catalog updated Oct 15, 2026 · An issue in Matomo
Check if you run it
No confirmed exploitation is on record for CVE-2026-78850. EPSS is 0.30%. Act only if a listed version of An issue in Matomo is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (An issue in Matomo).
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Medium5.0
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.30%
- Remediation
- Advisory link
- Affected products
- See sources for product scope
An issue in Matomo v.5.11.2 allows a remote attacker to obtain sensitive information via the SiteContentDetector / SitesManager component
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2026-78850
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-78850. EPSS is 0.30%. Act only if a listed version of An issue in Matomo is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-918: Server-Side Request Forgery (SSRF). EPSS 0.30%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Oct 15, 2026 · NIST NVD
Detected
An issue in Matomo v.5.11.2 allows a remote attacker to obtain sensitive information via the SiteContentDetector / SitesManager component
Oct 15, 2026 · NIST NVD
Updated
An issue in Matomo v.5.11.2 allows a remote attacker to obtain sensitive information via the SiteContentDetector / SitesManager component
Sources
- CVE.orgVulnerability recordCVE-2026-78850
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-78850
30-day exploitation probability 0.3%
first.org - NIST NVDVulnerability recordCVE-2026-78850
An issue in Matomo v.5.11.2 allows a remote attacker to obtain sensitive information via the SiteContentDetector / SitesManager component
nvd.nist.gov
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.