CVE-2021-25094CWE-306

Tatsu < 3.3.12 - Unauthenticated RCE

published April 25, 2022

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 99.7th percentile for exploit probability.

CVSS
—
EPSS
83%
Percentile
99.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.83232 · 99.7th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2022-04-25T15:50Z
EPSS history
Timeline
  • 25 APR 15:50Z
    Tatsu < 3.3.12 - Unauthenticated RCE
    cvelistv5