CVE-2023-6812 WP Compress – Image Optimizer [All-In-One] <= 6.20.01 - Open Redirect via css

What is CVE-2023-6812?

CVE-2023-6812 is a medium-severity vulnerability in aresit WP Compress – Instant Performance & Speed Optimization, published on 14 May 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The WP Compress – Image Optimizer [All-In-One plugin for WordPress is vulnerable to Open Redirect in all versions up to, and including, 6.20.01. This is due to insufficient validation on the redirect url supplied via the 'css' parameter. This makes it possible for unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick them into performing an action.

Weakness: CWE-601

Which versions are affected by CVE-2023-6812?

It affects 1 product.

Products include Wpcompress Wp Compress.

How do I fix CVE-2023-6812?

No fix has been published for CVE-2023-6812 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-6812 being exploited?

There is no known exploitation of CVE-2023-6812 in the wild and no public exploit code.

Other vulnerabilities in aresit WP Compress – Instant Performance & Speed Optimization

• CVE-2023-6699 WP Compress – Image Optimizer [All-In-One] <= 6.10.33 - Unauthenticated Directory Traversal via css Critical 9.1
• CVE-2025-2110 WP Compress <= 6.30.15 - Authenticated (Subscriber+) Missing Authorization via Multiple Functions High 8.8
• CVE-2024-1934 WP Compress – Image Optimizer <= 6.11.08 - Missing Authorization to Unauthenticated CDN Modification High 7.5
• CVE-2025-47546 WordPress WP Compress plugin <= 6.30.30 - Cross Site Request Forgery (CSRF) Vulnerability High 7.1
• CVE-2024-47384 WordPress WP Compress plugin <= 6.20.13 - Reflected Cross Site Scripting (XSS) vulnerability High 7.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-4mwh-2xx5-5vp9.