Description

Cross-Site Request Forgery (CSRF) vulnerability in WP Umbrella allows Cross Site Request Forgery. This issue affects WP Umbrella: from n/a through 2.26.2.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "5.4",
  "pubDate": "2026-08-10T11:17:28.067Z",
  "pubdate": "2026-08-10T11:17:28.067Z",
  "executiveSummary": "A Cross-Site Request Forgery (CSRF) vulnerability exists in the WP Umbrella product affecting versions from n/a through 2.26.2. This security flaw enables malicious actors to trick authenticated users into executing unauthorized actions within the web application without their explicit consent.\nThe primary impact of this vulnerability involves the potential compromise of administrative integrity and unauthorized state-changing operations within the affected WordPress plugin environment. Risk implications include unauthorized configuration modifications or execution of privileged tasks depending on the specific endpoint targeted.\nAttacker capabilities rely on social engineering vectors, such as enticing a legitimate, authenticated user to visit a malicious third-party website or click a crafted hyperlink containing forged request payloads. Exploitation requirements mandate that the targeted user possesses an active, authenticated session with the vulnerable WordPress installation while interacting with the malicious content.",
  "technicalDetails": "The root cause of this vulnerability stems from the absence or inadequate implementation of cryptographic anti-CSRF tokens, such as nonces, within state-changing HTTP request handlers in the vulnerable component. Because the application fails to validate the origin of incoming requests or verify user intent cryptographically, it blindly processes requests originating from arbitrary external contexts.\nThe vulnerable component resides within the request handling logic of the WP Umbrella plugin, specifically affecting versions from n/a through 2.26.2. Network exposure is standard for web-based applications, requiring the target to be accessible via standard HTTP/HTTPS protocols over the network.\nAuthentication and privilege requirements dictate that the victim must be authenticated to the administrative backend of the WordPress site, often requiring administrative or high-level privileges for the forged actions to execute successfully. No prior authentication is required for the attacker initiating the CSRF vector, as the attack leverages the victim's existing browser session and cookie context.\nThe step-by-step attack flow proceeds as follows: First, an attacker crafts a malicious HTML page or script containing an automated HTTP request targeting a sensitive, state-changing endpoint within the WP Umbrella plugin. Second, the attacker delivers this payload to the victim via phishing, malicious advertisements, or compromised web pages. Third, when the authenticated victim renders the malicious content, their browser automatically includes valid session cookies along with the forged request destined for the WordPress site. Fourth, the server processes the incoming request under the security context of the victim, successfully executing the unintended operation without validating the request origin."
}