What is CVE-2023-3109?

CVE-2023-3109 is a medium-severity vulnerability in Admidio, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-06-05.

How severe is CVE-2023-3109?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Admidio

CVE-2023-3109

Cross-site Scripting (XSS) - Stored in GitHub repository admidio/admidio prior to 4.2.8.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-06-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (38.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Admidio
Admidio Admidio/admidio — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

huntr.dev/bounties/6fa6070e-8f7f-43ae-8a84-e36b28256123 (Exploit, Third Party Advisory)
github.com/admidio/admidio/commit/a7c211b835cafe1158932fbfcff9e5552e57510a (Patch)

Frequently asked questions

What is CVE-2023-3109?: CVE-2023-3109 is a medium-severity vulnerability in Admidio, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-06-05.
How severe is CVE-2023-3109?: Medium severity. CVSS v3 base score is 5.4 out of 10.