Advisory Published

CVE-2023-27757: Malicious File Upload

First published: Wed Mar 15 2023(Updated: )

An arbitrary file upload vulnerability in the /admin/user/uploadImg component of PerfreeBlog v3.1.1 allows attackers to execute arbitrary code via a crafted JPG file.


Affected SoftwareAffected VersionHow to fix
Perfree PerfreeBlog=3.1.1

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Frequently Asked Questions

  • What is CVE-2023-27757?

    CVE-2023-27757 is an arbitrary file upload vulnerability found in the /admin/user/uploadImg component of PerfreeBlog v3.1.1.

  • How can attackers exploit CVE-2023-27757?

    Attackers can exploit CVE-2023-27757 by uploading a crafted JPG file which allows them to execute arbitrary code.

  • What is the severity of CVE-2023-27757?

    CVE-2023-27757 has a severity rating of 9.8 (Critical).

  • What software version is affected by CVE-2023-27757?

    CVE-2023-27757 affects PerfreeBlog v3.1.1.

  • Is there a fix for CVE-2023-27757?

    At this time, there is no known fix for CVE-2023-27757. It is recommended to follow the provided reference for any updates or patches.


SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203