CVE-2020-8986

9.8 criticalEPSS 1.5%

Critical (9.8) in zend zendto. EPSS 1.5% chance of exploitation in the next 30 days.

lib/NSSDropbox.php in ZendTo prior to 5.22-2 Beta failed to properly check for equality when validating the session cookie, allowing an attacker to gain administrative access with a large number of requests.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-10-31)
CWE: CWE-754
Published: 2020-03-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

zend:zendto

References

https://zend.to/changelog.php
https://zend.to/changelog.php

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