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TI-2026-51628 Aliases CVE-2026-73524GHSA-r7q3-25g3-96cc

Cypht < 2.12.2 XSS via FROM Email Header in Contacts Module

Priority LOW 23CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00407 35th percentileScored 2026-11-07
Fix Fixed cypht (cypht-org): 2.12.2

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
cypht-orgcyphtbefore 2.12.22.12.2Patch availableCNA
  • cypht Vendorcypht-org Affected before 2.12.2 Fixed in 2.12.2 Patch available CNA

Remediation

  • Fix · CNA cypht (cypht-org) Fixed in 2.12.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    cypht-org cypht 2.12.2

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-50271 Cypht < 2.12.2 PHP Object Injection RCE via back_query ParameterPriority MEDIUM 42
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-73524
  2. 2026-10-03 Alias added: GHSA-r7q3-25g3-96cc

References

Patch 1

Other 2

  • TI-2026-50271 Cypht < 2.12.2 PHP Object Injection RCE via back_query Parameter CVSS 4.0HIGH 8.7
  • TI-2026-76820 Stored DOM cross-site scripting in Cypht via external image notice CVSS 4.0MEDIUM 5.3

Sources

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