What is CVE-2023-3188?

CVE-2023-3188 is a medium-severity vulnerability in Owncast Owncast/owncast, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2023-06-10.

How severe is CVE-2023-3188?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2023-3188 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SSRF in Owncast Owncast/owncast

CVE-2023-3188

Server-Side Request Forgery (SSRF) in GitHub repository owncast/owncast prior to 0.1.0.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2023-06-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.014 (70.6th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Owncast Owncast/owncast — versions unspecified
Owncast Project

Weakness classification (CWE)

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

Public proof-of-concept exploits

References

huntr.dev/bounties/0d0d526a-1c39-4e6a-b081-d3914468e495 (Exploit, Patch, Third Party Advisory, Issue Tracking)
github.com/owncast/owncast/commit/f40135dbf28093864482f9662c23e478ea192b16 (Patch)

Frequently asked questions

What is CVE-2023-3188?: CVE-2023-3188 is a medium-severity vulnerability in Owncast Owncast/owncast, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2023-06-10.
How severe is CVE-2023-3188?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2023-3188 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.