CVE-2025-66025 Caido Improperly Handles External Links in Markdown

Medium 4.3 Published Updated

Attackers can inject malicious links into Caido findings, redirecting users to attacker-controlled domains for phishing attacks.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-66025?

CVE-2025-66025 is a medium-severity vulnerability in caido, published on 26 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Caido is a web security auditing toolkit. Prior to version 0.53.0, the Markdown renderer used in Caido’s Findings page improperly handled user-supplied Markdown, allowing attacker-controlled links to be rendered without confirmation. When a user opened a finding generated through the scanner, or other plugins, clicking these injected links could redirect the Caido application to an attacker-controlled domain, enabling phishing style attacks. This issue has been patched in version 0.53.0.

Weakness: CWE-74

Which versions are affected by CVE-2025-66025?

How do I fix CVE-2025-66025?

No fix has been published for CVE-2025-66025 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-66025 being exploited?

There is no known exploitation of CVE-2025-66025 in the wild and no public exploit code.

Sources

Also known as GHSA-cf52-h5mw-gmc2.

Is CVE-2025-66025 in your software?

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