CVE-2021-25877
HIGHCVSS 7.2/10EPSS 3.10%
Last modified
CVE-2021-25877 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. AVideo/YouPHPTube 10.0 and prior is affected by Insecure file write. An administrator privileged user is able to write files on filesystem using flag and code variables in file save.php.. EPSS estimates a 3.10% chance of exploitation in the next 30 days.
Description
AVideo/YouPHPTube 10.0 and prior is affected by Insecure file write. An administrator privileged user is able to write files on filesystem using flag and code variables in file save.php.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Youphptube | Youphptube | <= 10.0 |
References
- https://synacktiv.comProduct
- https://www.synacktiv.com/sites/default/files/2021-01/YouPHPTube_Multiple_Vulnerabilities.pdfExploit, Vendor Advisory
- https://synacktiv.comProduct
- https://www.synacktiv.com/sites/default/files/2021-01/YouPHPTube_Multiple_Vulnerabilities.pdfExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-25877?
AVideo/YouPHPTube 10.0 and prior is affected by Insecure file write. An administrator privileged user is able to write files on filesystem using flag and code variables in file save.php.
How severe is CVE-2021-25877?
CVE-2021-25877 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 3.10% probability of exploitation in the next 30 days.
How do I fix CVE-2021-25877?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-25877?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST