CVE-2021-25094

HighCVSS 8.1/10Last modified Jun 17, 2026

Description

The Tatsu WordPress plugin before 3.3.12 add_custom_font action can be used without prior authentication to upload a rogue zip file which is uncompressed under the WordPress's upload directory. By adding a PHP shell with a filename starting with a dot ".", this can bypass extension control implemented in the plugin. Moreover, there is a race condition in the zip extraction process which makes the shell file live long enough on the filesystem to be callable by an attacker.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-306

Affected software

No affected versions have been published.

Timeline

Published
Apr 25, 2022
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-25094: High severity, CVSS 8.1 | Vulnix