CVE-2026-66666
MediumCVSS 6.9Exploitation Probability (EPSS)
Low risk20th percentile - higher than 20% of all known CVEs
Summary
Insertion of Sensitive Information Into Sent Data vulnerability in WordPress allows Retrieve Embedded Sensitive Data. This issue affects multiple WordPress versions from 6.6 through 7.1.2.
Risk Assessment
An attacker may access sensitive data embedded in sent content, potentially leading to information leakage.
Recommendation
Update WordPress to the latest patched version and check for other vulnerabilities.
Other vulnerabilities in WordPress
See all- CVE-2012-6707High
WordPress through version 4.8.2 uses a weak MD5-based password hashing algorithm, making it easier for attackers to determine cleartext values by leveraging access to the hash values.
- CVE-2017-9066High
In WordPress before version 4.7.5, there is insufficient redirect validation in the HTTP class, leading to SSRF vulnerability.
- CVE-2017-9065High
In WordPress before version 4.7.5, there is a lack of capability checks for post meta data in the XML-RPC API.
- CVE-2017-9064High
In WordPress before version 4.7.5, a Cross Site Request Forgery (CSRF) vulnerability exists in the filesystem credentials dialog because a nonce is not required for updating credentials.
- CVE-2017-9062High
In WordPress before version 4.7.5, there is improper handling of post meta data values in the XML-RPC API.
- CVE-2016-6896High
A directory traversal vulnerability in the wp_ajax_update_plugin function in WordPress 4.5.3 allows remote authenticated users to cause a denial of service or read certain text files via a .. (dot dot) in the plugin parameter to wp-admin/admin-ajax.php.
- CVE-2017-5489High
The CSRF vulnerability in WordPress before version 4.7.1 allows remote attackers to hijack the authentication of unspecified victims via vectors involving Flash file uploads.
- CVE-2016-4029High
WordPress before 4.5 does not consider octal and hexadecimal IP address formats when determining an intranet address, which allows remote attackers to bypass an intended SSRF protection mechanism via a crafted address.
- CVE-2016-5839High
WordPress versions before 4.5.3 allow remote attackers to bypass the sanitize_file_name protection mechanism via unspecified vectors.
- CVE-2016-5838High
WordPress before 4.5.3 allows remote attackers to bypass intended password-change restrictions by leveraging knowledge of a cookie.
Original NVD description (English source)
Insertion of Sensitive Information Into Sent Data vulnerability in Automattic WordPress allows Retrieve Embedded Sensitive Data. This issue affects WordPress: from 7.1 through 7.1.2, from 7.0 through 7.0.6, from 6.9 through 6.9.9, from 6.8 through 6.8.10, from 6.7 through 6.7.9, and from 6.6 through 6.6.9.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS