---
description: Cloudflare WAF managed rulesets 2026-08-07 release
title: WAF Release - 2026-08-07
image: https://developers.cloudflare.com/changelog/post/2026-08-07-waf-release/og.png?v=06bccb66cf838486
---

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August 7, 2026

## WAF Release - 2026-08-07

[WAF](https://developers.cloudflare.com/waf/)

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-08-07-waf-release/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

This release updates WordPress XSS rule metadata in the Cloudflare Managed Ruleset and Cloudflare Free Ruleset to identify XSS2Shell (CVE-2026-64638). It also disables the Command Injection - Obfuscation rule.

**Key Findings**

- CVE-2026-64638: A pre-authentication reflected cross-site scripting vulnerability affecting the WordPress login screen. Exploitation requires social engineering and explicit interaction by the target user. Under additional conditions, it may be escalated to remote code execution.

**Impact**

The WordPress changes update rule metadata only; detection behavior and actions remain unchanged.

| Ruleset | Rule ID | Legacy Rule ID | Description | Previous Action | New Action | Comments |
| --- | --- | --- | --- | --- | --- | --- |
| Cloudflare Managed Ruleset | ...9c6dff1c | N/A | Wordpress - XSS - CVE:CVE-2026-64638 | Block | N/A | Rule metadata description refined. Detection unchanged. |
| Cloudflare Free Ruleset | ...9ab5ed95 | N/A | Wordpress - XSS - CVE:CVE-2026-64638 | Block | N/A | Rule metadata description refined. Detection unchanged. |
| Cloudflare Managed Ruleset | ...761e7a4c | N/A | Command Injection - Obfuscation | Block | Disabled | Detection logic has been deprecated |

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