HOMEVULNERABILITIESCVE-2026-29965
MEDIUM

CVE-2026-29965

Published: May 18, 2026· Updated: May 19, 2026

6.1
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:8.3th

Official Description

HSC MailInspector 5.3.3-7 is vulnerable to Cross Site Scripting (XSS) in the /police/WarningUrlPage.php endpoint due to improper neutralization of user-supplied input that uses alternate or obfuscated JavaScript syntax.

NVD Source

Technical Analysis

CVE-2026-29965 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeChanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Vendors & Products

hsclabs1 product
mailinspector
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/sql3t0/cve-disclosures
ADVISORYhttps://github.com/sql3t0/cve-disclosures/blob/main/04_-_CVE-2026-29965_XSS.md

All References (3)

→
https://github.com/sql3t0/cve-disclosuresThird Party Advisory
→
https://github.com/sql3t0/cve-disclosures/blob/main/04_-_CVE-2026-29965_XSS.mdThird Party Advisory
→
https://hsclabs.com/pt-br/mailinspector/Product

Quick Facts

CVE IDCVE-2026-29965
CVSS Score6.1 / 10
SeverityMEDIUM
CISA KEVNo
EPSS (30d)0.03%
Affected1 vendor
PublishedMay 18, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-29965 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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