CVE-2026-29964: HSC MailInspector v5.3.3-7 contains a Cross-Site Scripting (XSS) vulnerability in the /tap/tap.php endpoint due to improper neutralization of user-controlled…

PriorityP427medium6.1CVSS 3.1

AVNACLPRNUIRSCCLILAN

EPSS

0.24%

15.4th percentile

HSC MailInspector v5.3.3-7 contains a Cross-Site Scripting (XSS) vulnerability in the /tap/tap.php endpoint due to improper neutralization of user-controlled input using alternate or obfuscated JavaScript syntax. The endpoint reflects unsanitized user input in HTTP responses without adequate output encoding, allowing a remote attacker to execute arbitrary JavaScript code in the context of a victim's browser.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
hsclabs	mailinspector	—	—

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