CVE-2016-6635 Cross-site request forgery in n/a

What is CVE-2016-6635?

CVE-2016-6635 is a high-severity vulnerability in Wordpress Wordpress, published on 7 Aug 2016. 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

Cross-site request forgery (CSRF) vulnerability in the wp_ajax_wp_compression_test function in wp-admin/includes/ajax-actions.php in WordPress before 4.5 allows remote attackers to hijack the authentication of administrators for requests that change the script compression option.

Weakness: CWE-352

Which versions are affected by CVE-2016-6635?

It affects 1 product.

Products include Wordpress Wordpress.

How do I fix CVE-2016-6635?

Upgrade to a fixed version.

Is CVE-2016-6635 being exploited?

There is no known exploitation of CVE-2016-6635 in the wild and no public exploit code.

Other vulnerabilities in Wordpress Wordpress

• CVE-2026-63030 WordPress Core Interpretation Conflict Exploited Critical 9.8
• CVE-2026-87902 WordPress Core Remote File Inclusion Exploited High 8.1
• CVE-2026-60137 WordPress Core SQL Injection Exploited Medium 5.9
• CVE-2012-2399 Cross-site scripting in n/a Critical 10.0
• CVE-2012-2400 Other in n/a Critical 10.0

All Wordpress Wordpress vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2016-6635, GHSA-g94h-w5p9-mvxc, UBUNTU-CVE-2016-6635.