CVE-2021-25094 EXPLOIT
8.1
HIGH · CVSS 3.1 · EPSS 83.4% (pctl 100)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 8.1 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 83.35% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-306 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2022-04-25 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| brandexponents | tatsu |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Tatsu 3.3.11 - Unauthenticated RCE | 2025-04-18 |
References
- http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-Execution.html
- https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/
- https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcd
- http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-Execution.html
- https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/
- https://packetstorm.news/files/id/190566/
- https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcd
- https://www.exploit-db.com/exploits/52260
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