Vulnerability · Published Jul 15, 2026 · Assigned by TCS-CERT

CVE-2026-9007Reflected XSS in HCL Notes

Medium 5.5

In plain English

A medium-severity cross-site scripting in HCL Notes from HCL Software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).

Severity (CVSS 4.0)5.5Medium
Exploit odds (30 days)0.4%top 61.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in HCL Notes from HCL Software allows reflected Cross-Site Scripting (XSS).  Successful exploitation allows an attacker to execute arbitrary JavaScript in the context of another user. This issue affects HCL Notes: Release 12.0.2FP5HF8 on Linux 4.18.0-553.52.1.El8_10.X64_64#1.

Affected products (as reported)

VendorProductVersions
HCL Software HCL Notes Release 12.0.2FP5HF8 on Linux 4.18.0-553.52.1.el8_10.x64_64#1

Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

References