What is CVE-2023-5689?

CVE-2023-5689 is a medium-severity vulnerability in Modoboa, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-10-20.

How severe is CVE-2023-5689?

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

XSS in Modoboa

CVE-2023-5689

Cross-site Scripting (XSS) - DOM in GitHub repository modoboa/modoboa prior to 2.2.2.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-10-20 · 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 (41.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.5% 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

Modoboa
Modoboa Modoboa/modoboa — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

huntr.com/bounties/24835833-3421-412b-bafb-1b7ea3cf60e6 (Exploit, Patch, Third Party Advisory)
github.com/modoboa/modoboa/commit/d33d3cd2d11dbfebd8162c46e2c2a9873919a967 (Patch)

Frequently asked questions

What is CVE-2023-5689?: CVE-2023-5689 is a medium-severity vulnerability in Modoboa, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-10-20.
How severe is CVE-2023-5689?: Medium severity. CVSS v3 base score is 5.4 out of 10.