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8.1
HIGH CVSS 3.1
CVE-2021-25094
Tatsu < 3.3.12 - Unauthenticated RCE
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.

INFO

Published Date :

April 25, 2022, 4:16 p.m.

Last Modified :

April 21, 2025, 3:15 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2021-25094 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Brandexponents tatsu
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 HIGH [email protected]
Public PoC/Exploit Available at Github

CVE-2021-25094 has a 12 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-25094.

URL Resource
http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/ Exploit Third Party Advisory
https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcd Exploit Third Party Advisory
http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/ Exploit Third Party Advisory
https://packetstorm.news/files/id/190566/
https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcd Exploit Third Party Advisory
https://www.exploit-db.com/exploits/52260
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-25094 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-25094 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
0xZEros66/Wordpress-Exploit-AiO-Package

None

Updated: 10 months, 1 week ago
1 stars 0 fork 0 watcher
Born at : Oct. 30, 2024, 10:25 a.m. This repo has been linked 13 different CVEs too.
Profile Photo
NaInSec/CVE-PoC-in-GitHub

All CVE - PoC in GitHub

poc proofofconcept tester allcve cvegithub cvenew cvepoc cveupdate

Updated: 3 months, 1 week ago
12 stars 3 fork 3 watcher
Born at : March 22, 2024, 3:58 p.m. This repo has been linked 931 different CVEs too.
Profile Photo
zecool/cve

None

Updated: 2 months, 2 weeks ago
2 stars 0 fork 0 watcher
Born at : March 11, 2024, 1:21 p.m. This repo has been linked 935 different CVEs too.
Profile Photo
InMyMine7/SharkXploit

SharkXploit Wordpress Auto Exploit is a great tools for search vulnerability in wordpress

auto-upload-shell csrf vulnerability wordpress-plugin

Python

Updated: 3 months, 1 week ago
7 stars 3 fork 3 watcher
Born at : Nov. 28, 2023, 1:08 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
whoforget/CVE-POC

None

Updated: 2 years, 5 months ago
0 stars 2 fork 2 watcher
Born at : April 8, 2023, 6:19 a.m. This repo has been linked 928 different CVEs too.
Profile Photo
experimentalcrow1/TypeHub-Exploiter

This script exploits a vulnerability (CVE-2021-25094) in the TypeHub WordPress plugin.

Python

Updated: 2 years, 5 months ago
1 stars 0 fork 0 watcher
Born at : March 18, 2023, 11:26 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
k0mi-tg/CVE-POC

None

Updated: 1 year, 6 months ago
20 stars 3 fork 3 watcher
Born at : Feb. 14, 2023, 6:10 p.m. This repo has been linked 921 different CVEs too.
Profile Photo
WhooAmii/POC_to_review

None

Updated: 3 months, 2 weeks ago
2 stars 2 fork 2 watcher
Born at : Nov. 25, 2022, 5:43 p.m. This repo has been linked 935 different CVEs too.
Profile Photo
xdx57/CVE-2021-25094

Tatsu Plugin ZIP File add_custom_font unrestricted upload

PHP

Updated: 3 years, 1 month ago
0 stars 0 fork 0 watcher
Born at : July 10, 2022, 5:01 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
TUANB4DUT/typehub-exploiter

GILANG - Exploiter for CVE-2021-25094

Shell

Updated: 3 years ago
1 stars 1 fork 1 watcher
Born at : July 10, 2022, 2:01 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
Shamsuzzaman321/Wordpress-Exploit-AiO-Package

Wordpress Exploit AiO Package 2022 with python 3 and 2

HTML Python Shell PHP

Updated: 1 year ago
4 stars 2 fork 2 watcher
Born at : June 21, 2022, 4:15 p.m. This repo has been linked 13 different CVEs too.
Profile Photo
darkpills/CVE-2021-25094-tatsu-preauth-rce

None

Python

Updated: 1 year, 2 months ago
8 stars 2 fork 2 watcher
Born at : Jan. 3, 2022, 9:19 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-25094 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2021-25094 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Apr. 21, 2025

    Action Type Old Value New Value
    Added Reference https://packetstorm.news/files/id/190566/
    Added Reference https://www.exploit-db.com/exploits/52260
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-Execution.html
    Added Reference https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/
    Added Reference https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcd
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Nov. 09, 2022

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Aug. 01, 2022

    Action Type Old Value New Value
    Removed CWE WPScan CWE-434
    Added CWE WPScan CWE-306
    Removed CWE Reason CWE-434 / More specific CWE option available
  • Reanalysis by [email protected]

    Jul. 29, 2022

    Action Type Old Value New Value
    Added CWE NIST CWE-306
  • Modified Analysis by [email protected]

    Jul. 21, 2022

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
  • CVE Modified by [email protected]

    May. 17, 2022

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-Execution.html [No Types Assigned]
  • Initial Analysis by [email protected]

    May. 05, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/ No Types Assigned https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/ Exploit, Third Party Advisory
    Changed Reference Type https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcd No Types Assigned https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcd Exploit, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:brandexponents:tatsu:*:*:*:*:*:wordpress:*:* versions up to (excluding) 3.3.12
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 8.1
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 6.8
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

87.34 }} 1.07%

score

0.99405

percentile