Vulnerability · Published Dec 23, 2025 · Assigned by VulnCheck
CVE-2021-47738CSZ CMS 1.2.7 Persistent Cross-Site Scripting via Private Messaging
Medium 5.4
In plain English
A medium-severity cross-site scripting in CSZ CMS from Cszcms. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.3%top 79.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
CSZ CMS 1.2.7 contains a persistent cross-site scripting vulnerability that allows unauthorized users to embed malicious JavaScript in private messages. Attackers can send messages with script payloads in the user-agent header, which will execute when an admin views the message in the backend dashboard.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
References
- ExploitDB-48354 exploit
- Official CSZ CMS Vendor Homepage product
- CSZ CMS SourceForge Project product
- VulnCheck Advisory: CSZ CMS 1.2.7 Persistent Cross-Site Scripting via Private Messaging third-party-advisory