Cross-site scripting (XSS) vulnerability in SmarterTools SmarterMail Enterprise 4.3 allows remote attackers to inject arbitrary web script or HTML via a STYLE attribute of an element in the Subject field of an e-mail message.
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Cross-site scripting (XSS) vulnerability in SmarterTools SmarterMail Enterprise 4.3 allows remote attackers to inject arbitrary web script or HTML via a STYLE attribute of an element in the Subject field of an e-mail message.
February 21, 2008
April 23, 2026
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
SmarterTools SmarterMail 4.3 - 'Subject' HTML Injection
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