What is CVE-2020-23647?

CVE-2020-23647 is a medium-severity vulnerability in Boxbilling, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-04-28.

How severe is CVE-2020-23647?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Boxbilling

CVE-2020-23647

Cross Site Scripting (XSS) vulnerability in BoxBilling 4.19, 4.19.1, 4.20, and 4.21 allows remote attackers to run arbitrary code via the message field on the submit new ticket form.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-04-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (41.7th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.7% 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

Boxbilling — versions 4.19, 4.19.1, 4.20

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/boxbilling/boxbilling/issues/596 (Exploit, Issue Tracking)

Frequently asked questions

What is CVE-2020-23647?: CVE-2020-23647 is a medium-severity vulnerability in Boxbilling, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-04-28.
How severe is CVE-2020-23647?: Medium severity. CVSS v3 base score is 6.1 out of 10.