# CVE-2025-49071: Flozen - Arbitrary File Upload

> Live exploitation tracking for CVE-2025-49071 by the CrowdSec Live Exploit Tracker, built from real-world attack data crowdsourced from CrowdSec's global network.

Page: https://tracker.crowdsec.net/cves/CVE-2025-49071

## Key facts

- **Exploitation phase:** Limited Exploitation. The vulnerability is known but shows very limited attacker interest or exploitation activity.
- **Public exploit available:** Yes
- **Affected products:** NasaTheme Flozen
- **Weaknesses:** CWE-434 (Unrestricted Upload of File with Dangerous Type)
- **Tags:** wordpress, cms

## Description

Unrestricted Upload of File with Dangerous Type vulnerability in NasaTheme Flozen flozen-theme allows Upload a Web Shell to a Web Server.This issue affects Flozen < 1.5.1.

## CrowdSec analysis

[CVE-2025-49071](https://euvd.enisa.europa.eu/vulnerability/CVE-2025-49071) is an unrestricted file upload vulnerability in the NasaTheme Flozen theme, allowing attackers to upload malicious files such as web shells to the server. Exploiting this flaw could enable remote code execution, giving attackers full control over the affected web server and potentially leading to data theft or further compromise.

CrowdSec has been tracking this vulnerability and its exploits since 8th of April 2026.

CrowdSec has not observed any significant exploitation activity targeting CVE-2025-49071 across its network. As a result, no community-driven trend analysis is available for this vulnerability at this time.

Attackers exploit vulnerable Flozen WordPress themes by uploading a malicious ZIP file via the `/wp-admin/admin-ajax.php` endpoint, abusing the `wp_handle_upload` action to deploy a webshell at `/wp-content/uploads/nasa-custom-fonts/shadow/index.php`.

## Timeline

- 2025-06-17: CVE Published. CVE-2025-49071 is published to NVD.
- 2026-04-08: Rule Released. CrowdSec releases a rule to detect CVE-2025-49071 exploitation attempts against the CrowdSec Network.

## References

- https://patchstack.com/database/Wordpress/Theme/flozen-theme/vulnerability/wordpress-flozen-1-5-1-arbitrary-file-upload-vulnerability?_s_id=cve
- https://github.com/rix4uni/cvemapping/blob/main/2025/CVE-2025-49071/shadow.py

## Live exploitation data

The [Live Exploit Tracker page](https://tracker.crowdsec.net/cves/CVE-2025-49071) follows observed exploitation activity for CVE-2025-49071. [Request an API key](https://tracker.crowdsec.net/request-api-key) for full access to its exploitation timeline, attacking IP addresses and blocklists.