What is CVE-2020-8985?

CVE-2020-8985 is a high-severity vulnerability in Zend Zendto, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2020-03-24.

How severe is CVE-2020-8985?

High severity. CVSS v3 base score is 8.8 out of 10.

XSS in Zend Zendto

CVE-2020-8985

ZendTo prior to 5.22-2 Beta allowed reflected XSS and CSRF via the unlock.tpl unlock user functionality.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-03-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (41.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.3% 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

Zend Zendto — versions 3.10, 3.11, 3.12

Weakness classification (CWE)

References

zend.to/changelog.php (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2020-8985?: CVE-2020-8985 is a high-severity vulnerability in Zend Zendto, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2020-03-24.
How severe is CVE-2020-8985?: High severity. CVSS v3 base score is 8.8 out of 10.