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Description

Unauthenticated Cross Site Scripting (XSS) in Post SMTP <= 3.6.2 versions.

PUBLISHED Reserved 2026-05-25 | Published 2026-06-15 | Updated 2026-06-16 | Assigner Patchstack




HIGH: 7.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

Any version
affected

Credits

mcdruid | Patchstack Bug Bounty Program finder

References

patchstack.com/...site-scripting-xss-vulnerability?_s_id=cve vdb-entry

cve.org (CVE-2026-48838)

nvd.nist.gov (CVE-2026-48838)

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