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TI-2025-40551 Aliases CVE-2025-66025

Caido Improperly Handles External Links in Markdown

Priority LOW 19CWE-74Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00228 13th percentileScored 2026-11-07
Fix Fixed caido (caido): 0.53.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
caidocaidobefore 0.53.00.53.0Patch availableCNA
  • caido Vendorcaido Affected before 0.53.0 Fixed in 0.53.0 Patch available CNA

Remediation

  • Fix · CNA caido (caido) Fixed in 0.53.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-66025

References

  • TI-2026-20052 Caido has an insufficient patch for DNS rebind leading to RCE CVSS 3.1CRITICAL 9.8
  • TI-2025-31132 Hijacking Caido instance during the initial setup via DNS Rebinding to achieve RCE CVSS 3.1HIGH 7.5
  • TI-2025-33726 Caido Toast Vulnerable to Reflected Cross-site Scripting CVSS 3.1MEDIUM 6.3
  • TI-2025-16849 Cross Site Scripting on URL decode Tooltip in Caido CVSS 3.1MEDIUM 5.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences