CVE-2026-29964

MEDIUM 6.1

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	n/a
Product	n/a
Published	May 18, 2026
Last Updated	May 18, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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