CVE-2026-1786 in Twitter Posts to Blog Plugin
Summary
by MITRE • 02/11/2026
The Twitter posts to Blog plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'dg_tw_options' function in all versions up to, and including, 1.11.25. This makes it possible for unauthenticated attackers to update plugin settings including Twitter API credentials, post author, post status, and the capability required to access the plugin's admin menu.
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Analysis
by VulDB Data Team • 02/12/2026
The vulnerability identified as CVE-2026-1786 resides within the Twitter posts to Blog plugin for WordPress, representing a critical authorization flaw that undermines the security posture of affected systems. This issue affects all versions up to and including 1.11.25, where the plugin fails to implement proper capability checks before allowing modifications to its core configuration parameters. The absence of authentication verification creates a pathway for malicious actors to exploit the system without requiring valid user credentials or administrative privileges.
The technical flaw manifests specifically within the 'dg_tw_options' function which handles plugin settings modifications. This function operates without verifying whether the requesting user possesses the necessary permissions to alter the configuration, effectively removing any access controls that should normally govern such operations. The vulnerability enables attackers to manipulate critical plugin parameters including Twitter API credentials, which could lead to unauthorized access to Twitter accounts and potential data exfiltration. Additionally, attackers can modify post author information, change post status from draft to published, and adjust the capability requirements needed to access the plugin's administrative interface.
The operational impact of this vulnerability extends beyond simple data modification, as it creates opportunities for more sophisticated attacks within the WordPress environment. An unauthenticated attacker who successfully exploits this vulnerability can gain the ability to control how Twitter posts are published to the blog, potentially leading to the dissemination of malicious content or the redirection of traffic to harmful destinations. The modification of Twitter API credentials particularly poses a significant risk as it could allow attackers to take control of the associated Twitter accounts and use them for phishing campaigns or other malicious activities.
The vulnerability aligns with CWE-863, which addresses "Incorrect Authorization" in software systems, and represents a clear violation of the principle of least privilege. From an adversarial perspective, this flaw maps directly to techniques described in the MITRE ATT&CK framework under the T1078 credential access and T1059 command and control categories, as attackers can leverage the unauthorized access to manipulate system behavior and establish persistent control mechanisms. The lack of proper capability checks creates a fundamental weakness that allows attackers to escalate their privileges within the WordPress plugin ecosystem without requiring legitimate administrative access.
Organizations should immediately implement mitigations including updating to the latest version of the plugin where the capability check has been properly implemented, and conducting thorough security audits of all installed WordPress plugins to identify similar authorization flaws. Network monitoring should be enhanced to detect unusual modifications to plugin settings, and administrators should review access logs for any suspicious activity related to the affected plugin. The recommended approach involves implementing proper authentication checks at the function level, ensuring that only users with appropriate administrative privileges can modify sensitive plugin configurations, thereby preventing unauthorized modifications that could compromise the integrity of the WordPress installation and its associated data sources.