CVE-2026-92548: Information Disclosure (CVSS 5.3)

Description

The WP Popular Posts plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 7.4.2 via the 'context' parameter. This makes it possible for unauthenticated attackers to extract sensitive edit-context fields — including raw title, raw content body, password, meta, status, and guid — from non-public post objects such as wp_block synced patterns that WordPress core itself refuses to expose to unauthenticated callers. This is possible because the plugin's REST route is registered with a permission_callback of __return_true and passes the caller-supplied context parameter (e.g., context=edit) directly to WP_REST_Posts_Controller::prepare_item_for_response() without invoking get_item_permissions_check() or check_read_permission(), while the underlying query accepts an arbitrary post_type value without enforcing public or show_in_rest visibility flags.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploit Prediction

0.0032

Probability of exploitation

0.23%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-200 CWE-200

References

Other References

https://plugins.trac.wordpress.org/browser/wordpress-popular-posts/tags/7.4.2/src/Query.php#L421 https://plugins.trac.wordpress.org/browser/wordpress-popular-posts/tags/7.4.2/src/Rest/PostsEndpoint.php#L38 https://plugins.trac.wordpress.org/browser/wordpress-popular-posts/tags/7.4.2/src/Rest/PostsEndpoint.php#L51 https://plugins.trac.wordpress.org/browser/wordpress-popular-posts/tags/7.4.2/src/Rest/PostsEndpoint.php#L96 https://plugins.trac.wordpress.org/changeset/3715724/wordpress-popular-posts/trunk https://plugins.trac.wordpress.org/changeset/3715724/wordpress-popular-posts/trunk/src/Rest/PostsEndpoint.php https://www.wordfence.com/threat-intel/vulnerabilities/id/09c63c2f-d2d3-4c39-8329-0e0e5b62db98?source=cve

Frequently Asked Questions

What is CVE-2026-92548? +

The WP Popular Posts plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 7.4.2 via the 'context' parameter. This makes it possible for unauthenticated attackers to extract sensitive edit-context fields — including raw title, raw content body, password, meta, status, and guid — from non-public post objects such as wp_block synced patterns that WordPress core itself refuses to expose to unauthenticated callers. This is possible because the plugin's REST route is registered with a permission_callback of __return_true and passes the caller-supplied context parameter (e.g., context=edit) directly to WP_REST_Posts_Controller::prepare_item_for_response() without invoking get_item_permissions_check() or check_read_permission(), while the underlying query accepts an arbitrary post_type value without enforcing public or show_in_rest visibility flags. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-92548? +

CVE-2026-92548 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0032, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-92548? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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