Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Brandexponents | Tatsu | < 3.3.12 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-ExploitThird Party AdvisoryVDB Entry
- https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/ExploitThird Party Advisory
- https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcdExploitThird Party Advisory
- http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-ExploitThird Party AdvisoryVDB Entry
- https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/ExploitThird Party Advisory
- https://packetstorm.news/files/id/190566/
- https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcdExploitThird Party Advisory
- https://www.exploit-db.com/exploits/52260
FAQ
What is CVE-2021-25094?
CVE-2021-25094 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 add...
How severe is CVE-2021-25094?
CVE-2021-25094 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-25094?
Check the references section above for vendor advisories and patch information. Affected products include: Brandexponents Tatsu.