What is CVE-2023-0949?

CVE-2023-0949 is a medium-severity vulnerability in Modoboa, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2023-02-22.

How severe is CVE-2023-0949?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Modoboa

CVE-2023-0949

Cross-site Scripting (XSS) - Reflected in GitHub repository modoboa/modoboa prior to 2.0.5.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-02-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (40.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.2% 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.dev/bounties/ef87be4e-493b-4ee9-9738-44c55b8acc19 (Exploit, Third Party Advisory)
github.com/modoboa/modoboa/commit/aa74e9a4a870162eea169e0a6a2eab841f8811b7 (Patch)

Frequently asked questions

What is CVE-2023-0949?: CVE-2023-0949 is a medium-severity vulnerability in Modoboa, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2023-02-22.
How severe is CVE-2023-0949?: Medium severity. CVSS v3 base score is 4.8 out of 10.