What is CVE-2020-13248?

CVE-2020-13248 is a medium-severity vulnerability in Boolebox, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-06-24.

How severe is CVE-2020-13248?

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

XSS in Boolebox

CVE-2020-13248

BooleBox Secure File Sharing Utility before 4.2.3.0 allows stored XSS via a crafted avatar field within My Account JSON data to Account.aspx.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-06-24 · 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: 0.006 (45.5th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Boolebox

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

members.backbox.org/boolebox-secure-sharing-multiple-vulnerabilities/ (Exploit, Third Party Advisory)
app.boolebox.com/release/vulnerabilities/CVE-2020-13247-13248.html (Vendor Advisory)

Frequently asked questions

What is CVE-2020-13248?: CVE-2020-13248 is a medium-severity vulnerability in Boolebox, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-06-24.
How severe is CVE-2020-13248?: Medium severity. CVSS v3 base score is 5.4 out of 10.