CVE-2026-6003
CWE-79Published: April 10, 2026· Updated: Apr 13, 2026
Official Description
A security vulnerability has been detected in code-projects Simple IT Discussion Forum 1.0. This issue affects some unknown processing of the file /admin/user.php. Such manipulation of the argument fname leads to cross site scripting. The attack may be performed from remote. The exploit has been disclosed publicly and may be used.
Technical Analysis
CVE-2026-6003 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A proof-of-concept (PoC) exploit exists for CVE-2026-6003. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.
From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
All References (5)
Quick Facts
Related CVEs (CWE-79)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-6003 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts