CVE-2026-29964

Published: May 18, 2026Modified: Jun 17, 2026

6.1

Vector

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

Exploitability: 2.8 / Impact: 2.7

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

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)

Products: Hsclabs: Mailinspector

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Hsclabs Mailinspector	Version 5.3.3-7

Related CWEs

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

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (3)

https://github.com/sql3t0/cve-disclosures

Source: cve@mitre.org

Third Party Advisory

https://github.com/sql3t0/cve-disclosures/blob/main/03_-_CVE-2026-29964_XSS.md

Source: cve@mitre.org

Third Party Advisory

https://hsclabs.com/pt-br/mailinspector/

Source: cve@mitre.org

Product

Timeline

No history available yet.