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TI-2021-07372 Aliases CVE-2021-25094GHSA-grmv-gp4f-w59q

Tatsu < 3.3.12 - Unauthenticated RCE

Priority HIGH 76CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-306.

Summary

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.

Why it matters now

EPSS 0.83232 99th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix Fixed Tatsu (Unknown): 3.3.12

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownTatsu3.3.12 to before 3.3.123.3.12Patch availableCNA
  • Tatsu VendorUnknown Affected 3.3.12 to before 3.3.12 Fixed in 3.3.12 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:brandexponents:tatsu:*:*:*:*:*:wordpress:*:*before 3.3.12Vulnerablebrandexponents
  • cpe:2.3:a:brandexponents:tatsu:*:*:*:*:*:wordpress:*:* Versions before 3.3.12 Vulnerable ·brandexponents

Remediation

  • Fix · CNA Tatsu (Unknown) Fixed in 3.3.12

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-25094
  2. 2026-10-03 Alias added: GHSA-grmv-gp4f-w59q

References

Exploit 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences