CVE-2021-47738
CSZ CMS 1.2.7 Persistent Cross-Site Scripting via Private Messaging
- State
- Published
- Severity
- 5.1 Medium
- Published
- Dec 23, 2025
- Updated
- Apr 7, 2026
- Reserved
- Dec 23, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N | VulnCheck |
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
CSZ CMSCszcms |
|
References
- ExploitDB-48354exploit
- Official CSZ CMS Vendor Homepageproduct
- CSZ CMS SourceForge Projectproduct
- VulnCheck Advisory: CSZ CMS 1.2.7 Persistent Cross-Site Scripting via Private Messagingthird-party-advisory
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