CVE-2023-6961 WP Meta SEO <= 4.5.12 - Unauthenticated Stored Cross-Site Scripting via Referer header

What is CVE-2023-6961?

CVE-2023-6961 is a high-severity cross-site scripting vulnerability in joomunited WP Meta SEO, published on 2 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The WP Meta SEO plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘Referer’ header in all versions up to, and including, 4.5.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Weakness: CWE-79

Which versions are affected by CVE-2023-6961?

It affects 1 product.

Products include Joomunited Wp Meta Seo.

How do I fix CVE-2023-6961?

No fix has been published for CVE-2023-6961 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-6961 being exploited?

There is no known exploitation of CVE-2023-6961 in the wild and no public exploit code.

Other vulnerabilities in joomunited WP Meta SEO

• CVE-2023-1381 WP Meta SEO < 4.5.5 - Author+ PHAR Deserialization High 8.8
• CVE-2023-0875 WP Meta SEO < 4.5.3 - Subscriber+ SQLi High 8.8
• CVE-2024-45456 WordPress WP Meta SEO plugin <= 4.5.13 - Cross Site Scripting (XSS) vulnerability Medium 6.5
• CVE-2023-0876 WP Meta SEO < 4.5.3 - Subscriber+ Improper Authorization causing Arbitrary Redirect Medium 6.1
• CVE-2024-45455 WordPress WP Meta SEO plugin <= 4.5.13 - Cross Site Scripting (XSS) vulnerability Medium 5.9

Sources

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

Also known as GHSA-q274-fpm6-p6rp.