6.5

CVE-2026-11977

WP Post Author <= 3.9.1 - Authenticated (Author+) SQL Injection

WP Post Author <= 3.9.1 - Authenticated (Author+) SQL Injection

The WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars plugin for WordPress is vulnerable to generic SQL Injection via the 'wpma_metabox_authors_list' parameter in all versions up to, and including, 3.9.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with author-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. Exploitation is a two-step chain: an attacker first saves a crafted guest-author token via the wpma_metabox_authors_list parameter during post creation or editing, then triggers the injection when any admin user loads the post list screen at /wp-admin/edit.php, causing the injected SQL result to be rendered in the Authors column.
Mögliche Gegenmaßnahme
WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars: Update to version 3.10.0, or a newer patched version
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellerafthemes
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Produkt WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars
Default Statusunaffected
Version <= 3.9.1
Version 0
Status affected
VulnDex Vulnerability Enrichment
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Weitere Schwachstelleninformationen
SystemWordPress Plugin
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Produkt WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars
Version *-3.9.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.162
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security@wordfence.com 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

https://www.wordfence.com/threat-intel/vulnerabilities/id/ca5cb925-6f95-4f81-92d0-5f3c8e5f7d59?source=cve
https://plugins.trac.wordpress.org/browser/wp-post-author/trunk/includes/multi-authors/wpa-multi-authors.php#L312
https://plugins.trac.wordpress.org/browser/wp-post-author/trunk/includes/multi-authors/wpa-multi-authors.php#L110
https://plugins.trac.wordpress.org/browser/wp-post-author/trunk/includes/multi-authors/wpa-multi-authors.php#L231
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3577603%40wp-post-author%2Ftrunk%2Fincludes%2Fmulti-authors%2Fwpa-multi-authors.php&old=3166002%40wp-post-author%2Ftrunk%2Fincludes%2Fmulti-authors%2Fwpa-multi-authors.php&sfp_email=&sfph_mail=
https://www.wordfence.com/threat-intel/vulnerabilities/id/ca5cb925-6f95-4f81-92d0-5f3c8e5f7d59
Third Party Advisory