CVE-2016-6635

Name: CVE-2016-6635
Creator: NVD / NIST
Published: 2016-08-07T16:59:17.113+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.49%

Last modified Jun 17, 2026

CVE-2016-6635 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.49% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

2.49%

82.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Wordpress	Wordpress	<= 4.4.2

References

http://codex.wordpress.org/Version_4.5Release Notes
http://www.debian.org/security/2016/dsa-3681
https://github.com/WordPress/WordPress/commit/9b7a7754133c50b82bd9d976fb5b24094f658aabPatch
https://wpvulndb.com/vulnerabilities/8475Third Party Advisory, VDB Entry
http://codex.wordpress.org/Version_4.5Release Notes
http://www.debian.org/security/2016/dsa-3681
https://github.com/WordPress/WordPress/commit/9b7a7754133c50b82bd9d976fb5b24094f658aabPatch
https://wpvulndb.com/vulnerabilities/8475Third Party Advisory, VDB Entry

Timeline

Published: Aug 7, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-6635?

How severe is CVE-2016-6635?

Severity scoring for CVE-2016-6635 is pending analysis. The EPSS model estimates a 2.49% probability of exploitation in the next 30 days.

How do I fix CVE-2016-6635?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-6635?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST