What is CVE-2021-36720?

CVE-2021-36720 is a medium-severity vulnerability in Cybonet Pineapp - Mail Secure, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-12-08.

How severe is CVE-2021-36720?

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

XSS in Cybonet Pineapp - Mail Secure

CVE-2021-36720

PineApp - Mail Secure - Attacker sending a request to :/blocking.php?url=<script>alert(1)</script> and stealing cookies .

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-12-08 · 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: 0.006 (46.0th percentile), scored 2026-10-08.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.0% 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

Cybonet Pineapp - Mail Secure — versions PineApp - Mail Secure Latest
Pineapp Mail Secure

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.gov.il/en/departments/faq/cve_advisories (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2021-36720?: CVE-2021-36720 is a medium-severity vulnerability in Cybonet Pineapp - Mail Secure, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-12-08.
How severe is CVE-2021-36720?: Medium severity. CVSS v3 base score is 6.1 out of 10.