CVE-2007-0539 Denial of service in n/a

What is CVE-2007-0539?

CVE-2007-0539 is a high-severity denial of service vulnerability in Wordpress Wordpress, published on 29 Jan 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The wp_remote_fopen function in WordPress before 2.1 allows remote attackers to cause a denial of service (bandwidth or thread consumption) via pingback service calls with a source URI that corresponds to a large file, which triggers a long download session without a timeout constraint.

Which versions are affected by CVE-2007-0539?

It affects 1 product.

Products include Wordpress Wordpress.

How do I fix CVE-2007-0539?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2007-0539 being exploited?

There is no known exploitation of CVE-2007-0539 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-2007-0539, GHSA-v3r5-4wmw-ccc3.