CVE-2023-6303
CWE-79Published: November 27, 2023· Updated: Jun 17, 2026
Official Description
A vulnerability was found in CSZCMS 1.3.0. It has been classified as problematic. This affects an unknown part of the file /admin/settings/ of the component Site Settings Page. The manipulation of the argument Additional Meta Tag with the input <svg><animate onbegin=alert(1) attributeName=x dur=1s> leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-246129 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Technical Analysis
CVE-2023-6303 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.
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.
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
Official Patches & Advisories
All References (6)
Quick Facts
Related CVEs (CWE-79)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-6303 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts