Vulnerability Description
Cypht before 2.12.2 contains a cross-site scripting vulnerability in the contacts module that allows remote attackers to execute arbitrary script content by embedding malicious payloads within angle brackets in the FROM email header. The sanitization logic removes only the first occurrence of each angle bracket character, leaving additional angle brackets intact, which attackers exploit by delivering a crafted email whose FROM header executes script in the victim's browser when the user opens the message and accesses the Add Local Contacts function.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/cypht-org/cypht/commit/372343783b3d21c12f74bb88d0eef36c1579c0
- https://github.com/cypht-org/cypht/pull/2072
- https://github.com/cypht-org/cypht/releases/tag/v2.12.2
- https://www.vulncheck.com/advisories/cypht-xss-via-from-email-header-in-contacts
FAQ
What is CVE-2026-73524?
CVE-2026-73524 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Cypht before 2.12.2 contains a cross-site scripting vulnerability in the contacts module that allows remote attackers to execute arbitrary script content by embedding malicious payloads within angle b...
How severe is CVE-2026-73524?
CVE-2026-73524 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-73524?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.