Anchor CMS XSS Vulnerability: A Recipe for Disaster!

Anchor CMS 0.12.7 has a stored XSS vulnerability in the Markdown field of the add page feature. An authenticated user with page creation privileges can inject JavaScript, potentially hijacking sessions or impersonating admins. It’s like giving your website a surprise JavaScript party no one invited you to!

1P
Published: June 15, 2025 6:50 amAdded: June 15, 2025 at 12:02 amAssembled by: The Editor
Pro Dashboard

Hot Take:

Looks like Anchor CMS just dropped the anchor… straight into a security breach! Who knew a markdown field could be such a “mark-up” for trouble? Time to clean up those scripts before they script you out of your admin privileges! Avast, ye web developers, and secure the hatches!

Key Points:

  • Anchor CMS v0.12.7 has a stored XSS vulnerability in the markdown field.
  • This vulnerability affects the /admin/pages/add page.
  • An authenticated user with page creation privileges can exploit this flaw.
  • The vulnerability allows for arbitrary JavaScript execution.
  • Potential impacts include session hijacking and admin impersonation.

Membership Required

 You must be a member to access this content.

View Membership Levels
Already a member? Log in here
The Nimble Nerd
powered by the NSA, er,  GDPR Cookie Compliance
Confessional Booth of Our Digital Sins

Okay, deep breath, let's get this over with. In the grand act of digital self-sabotage, we've littered this site with cookies. Yep, we did that. Why? So your highness can have a 'premium' experience or whatever. These traitorous cookies hide in your browser, eagerly waiting to welcome you back like a guilty dog that's just chewed your favorite shoe. And, if that's not enough, they also tattle on which parts of our sad little corner of the web you obsess over. Feels dirty, doesn't it?