Vulnerability Details : CVE-2021-25094
Potential exploit
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.
Products affected by CVE-2021-25094
- cpe:2.3:a:brandexponents:tatsu:*:*:*:*:*:wordpress:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-25094
91.98%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-25094
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
NIST |
CWE ids for CVE-2021-25094
-
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.Assigned by:
- contact@wpscan.com (Primary)
- nvd@nist.gov (Secondary)
References for CVE-2021-25094
-
https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcd
Attention Required! | CloudflareExploit;Third Party Advisory
-
https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/
Wordpress Tatsu builder preauth RCE (CVE-2021-25094) | @darkpills cybersecurity blogExploit;Third Party Advisory
-
http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-Execution.html
WordPress Tatsu Builder Remote Code Execution ≈ Packet StormExploit;Third Party Advisory;VDB Entry
Jump to