CVE-2021-25094

Public Exploit
Tatsu < 3.3.12 - Unauthenticated RCE

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.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 88.48% Top 5%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory darkpills.com Third-Party Advisory wpscan.com
Affected: Unknown Tatsu
Published at:
Updated at:

References

Link Tags
https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcd third party advisory exploit
https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/ third party advisory exploit
http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-Execution.html third party advisory vdb entry exploit
https://packetstorm.news/files/id/190566/
https://www.exploit-db.com/exploits/52260

Frequently Asked Questions

What is the severity of CVE-2021-25094?
CVE-2021-25094 has been scored as a high severity vulnerability.
How to fix CVE-2021-25094?
To fix CVE-2021-25094, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-25094 being actively exploited in the wild?
It is possible that CVE-2021-25094 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~88% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-25094?
CVE-2021-25094 affects Unknown Tatsu.
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