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CVE-2021-25094

HIGH 8.1 CVSS 3.1
Published
April 25, 2022
Last modified
June 17, 2026
NVD status
Modified
Reported by
contact@wpscan.com
Weakness
CWE-306
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Affected products and versions

  • Unknown Tatsu — From 3.3.12 (including) to 3.3.12 (excluding)
  • brandexponents tatsu — Before 3.3.12

References

  • packetstormsecurity.com http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
  • darkpills.com https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/ Exploit, Third Party Advisory
  • wpscan.com https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcd Exploit, Third Party Advisory
  • packetstorm.news https://packetstorm.news/files/id/190566/
  • www.exploit-db.com https://www.exploit-db.com/exploits/52260
  • nvd.nist.gov Official NVD record