# CVE-2026-39595: BoldGrid W3 Total Cache broken access control

Source: https://junglewise.ai/threats/cve-2026-39595-boldgrid-w3-total-cache-broken-access-control  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-17. Updated: 2026-06-17  
License: CC BY 4.0 with a link back

CVE-2026-39595 · Severity: medium · CVSS 4.7 · Published 2026-06-17

W3 Total Cache is a popular WordPress plugin used to improve website performance and speed through caching. A security flaw in versions 2.9.1 and earlier allows users with 'Author' level permissions to perform actions they should not be authorized to access. While this requires an internal account with elevated privileges, it could lead to unauthorized changes to site configuration or minor data exposure.

Technologies: [BoldGrid W3 Total Cache](https://junglewise.ai/threats/technologies/w3-total-cache). Vendors: [BoldGrid](https://junglewise.ai/threats/vendors/boldgrid).

## Quick answers

**Is CVE-2026-39595 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-39595 being exploited in the wild.

**How severe is CVE-2026-39595?** Medium severity, with a CVSS score of 4.7, published 17 June 2026.

**Which products and versions are affected?** BoldGrid W3 Total Cache <= 2.9.1.

**Is there a fix for CVE-2026-39595?** A patch was published on 2026-03-12: Patch released in version 2.9.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-39595 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-39595?** Check whether you run BoldGrid W3 Total Cache 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.

## Technical details

A broken access control vulnerability (CWE-862: Missing Authorization) exists in the W3 Total Cache plugin for WordPress in versions up to and including 2.9.1. The flaw stems from insufficient authorization checks on certain functions, allowing a remote attacker with Author-level privileges (PR:H) to execute actions typically reserved for higher-privileged roles. An attacker can exploit this over the network without user interaction to potentially modify plugin settings or access restricted information. The issue is addressed in version 2.9.2.

## Affected products

- BoldGrid W3 Total Cache <= 2.9.1

## Timeline

- 2026-02-10: other: Reported by Muhammad Sharief
- 2026-03-12: advisory: Initial advisory published by Patchstack
- 2026-06-17: disclosed: CVE published to NVD
- 2026-03-12: patched: Patch released in version 2.9.2

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/w3-total-cache/vulnerability/wordpress-w3-total-cache-plugin-2-9-1-broken-access-control-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/w3-total-cache/vulnerability/wordpress-w3-total-cache-plugin-2-9-1-broken-access-control-vulnerability?_s_id=cve)

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