What’s Vulnerable › Vulnerabilities

CVE-2026-29964

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-18 · updated 2026-10-19
• Weakness: CWE-79

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 products

• Hsclabs Mailinspector: 5.3.3-7

References

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

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