CVE-2021-25094
8.1 · HIGHThe 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.
Overview
CVE-2021-25094 is a high-severity vulnerability. It was published on April 25, 2022 and has a CVSS 3.1 base score of 8.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
References
How CyberStrike helps
Reason, not just scan
It reasons through your app's logic the way a human pentester would, so it finds flaws signature scanners miss.
Learn moreVerified findings
Every finding is proven exploitable before you see it, which cuts the false positives that bury real risk.
Learn moreAI-driven DAST and SAST
Probe running apps and read source from one engine, so issues are caught before and after they ship.
Learn moreOpen source
Read exactly how it tests and what it reports. CyberStrike is open source and in early access.
View the repo
Frequently asked questions
What is CVE-2021-25094?
CVE-2021-25094 is a high-severity vulnerability. It was published on April 25, 2022 and has a CVSS 3.1 base score of 8.1 (HIGH).
How severe is CVE-2021-25094?
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-25094?
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-25094?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-25094 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
Related HIGH CVEs from 2021
View all- 8.9CVE-2021-21388
systeminformation is an open source system and OS information library for node.js. A command injecti
View details - 8.9CVE-2021-35213
An Improper Access Control Privilege Escalation Vulnerability was discovered in the User Setting of
View details - 8.9CVE-2021-35212
An SQL injection Privilege Escalation Vulnerability was discovered in the Orion Platform reported by
View details - 8.9CVE-2021-35215
Insecure deserialization leading to Remote Code Execution was detected in the Orion Platform version
View details - 8.9CVE-2021-35216
Insecure Deserialization of untrusted data remote code execution vulnerability was discovered in Pat
View details - 8.9CVE-2021-35218
Deserialization of Untrusted Data in the Web Console Chart Endpoint can lead to remote code executio
View details - 8.9CVE-2021-35217
Insecure Deseralization of untrusted data remote code execution vulnerability was discovered in Patc
View details - 8.9CVE-2021-38162
SAP Web Dispatcher versions - 7.49, 7.53, 7.77, 7.81, KRNL64NUC - 7.22, 7.22EXT, 7.49, KRNL64UC -7.2
View details - 8.8CVE-2021-21495
MK-AUTH through 19.01 K4.9 allows CSRF for password changes via the central/executar_central.php?aca
View details - 8.8CVE-2020-4917
IBM Cloud Pak System 2.3 is vulnerable to cross-site request forgery which could allow an attacker t
View details - 8.8CVE-2020-4942
IBM Curam Social Program Management 7.0.9 and 7.0.11 is vulnerable to cross-site request forgery whi
View details - 8.8CVE-2020-36158
mwifiex_cmd_802_11_ad_hoc_start in drivers/net/wireless/marvell/mwifiex/join.c in the Linux kernel t
View details