CVE-2026-73524Cypht < 2.12.2 XSS via FROM Email Header in Contacts Module
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No exploitation reported and no EPSS estimate yet.
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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
- 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
cypht-org cypht cypht_org:cypht (from the name) | before 2.12.2 | CNA record |
References
- https://github.com/cypht-org/cypht/releases/tag/v2.12.2release-notes
- https://github.com/cypht-org/cypht/pull/2072issue-tracking
- https://github.com/cypht-org/cypht/commit/372343783b3d21c12f74bb88d0eef36c1579c062patch
- https://www.vulncheck.com/advisories/cypht-xss-via-from-email-header-in-contacts-modulethird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.