CVE-2021-47737

CSZ CMS 1.2.7 HTML Injection Vulnerability via Member Dashboard

CSZ CMS 1.2.7 contains an HTML injection vulnerability that allows authenticated users to insert malicious hyperlinks in message titles. Attackers can craft POST requests to the member messaging system with HTML-based links to potentially conduct phishing or social engineering attacks.

Affected

Cszcms · CSZ CMS

CVSS v4.0 VULNCHECK

5.1 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULNCHECK

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS

0.28% chance of exploitation in the next 30 days, 19th percentile

Published

2025-12-23

Updated

2026-04-07

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/48357

Security advisories

• https://www.vulncheck.com/advisories/csz-cms-html-injection-vulnerability-via-member-dash…
• https://sourceforge.net/projects/cszcms
• https://www.cszcms.com

References

• CVE Record
• NVD entry