# CVE-2026-88999: Redux Framework WordPress plugin authorization bypass in custom fonts

Source: https://junglewise.ai/threats/cve-2026-88999-the-redux-framework-plugin-for-wordpress-is-vulnerable-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-01. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-88999 · Severity: medium · CVSS 4.3 · Published 2026-10-01

Redux Framework is a WordPress plugin that manages site settings and customization. An authenticated attacker with basic subscriber-level access can delete any media files from the site, including files belonging to administrators, exploiting a missing authorization check in the custom fonts feature. This allows an attacker to erase critical site assets and potentially disrupt site functionality.

Technologies: [Redux Framework](https://junglewise.ai/threats/technologies/redux-framework-redux-framework). Vendors: [Redux Framework](https://junglewise.ai/threats/vendors/redux-framework).

## Quick answers

**Is CVE-2026-88999 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-88999 being exploited in the wild.

**How severe is CVE-2026-88999?** Medium severity, with a CVSS score of 4.3, published 1 October 2026.

**Which products and versions are affected?** Redux Framework up to and including 4.5.14.

**Is there a fix for CVE-2026-88999?** Yes: fixed in 4.5.15. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-88999 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-88999?** Check whether you run Redux Framework at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 4.5.15

## Technical details

The plugin fails to properly verify user authorization when processing attachment deletion requests via the attachment_id parameter. An attacker who is a subscriber can obtain a valid redux_custom_fonts nonce when a Custom Fonts field is registered on the user profile page, then use this nonce to delete arbitrary media library attachments without proper capability checks. The vulnerability requires authentication and knowledge of attachment IDs but allows unauthorized access to WordPress delete_post capabilities.

## Affected products

- Redux Framework Redux Framework up to and including 4.5.14

## Timeline

- 2026-10-01: disclosed
- 2026-09-21: patched

## References

- [https://github.com/reduxframework/redux-framework/pull/4117/changes](https://github.com/reduxframework/redux-framework/pull/4117/changes)
- [https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.13/redux-core/inc/extensions/custom_fonts/class-redux-extension-custom-fonts.php](https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.13/redux-core/inc/extensions/custom_fonts/class-redux-extension-custom-fonts.php)

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