Description

Unauthenticated Cross Site Scripting (XSS) in Affiliates Manager <= 2.9.53 versions.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.1",
  "pubDate": "2026-08-18T15:17:04.083Z",
  "pubdate": "2026-08-18T15:17:04.083Z",
  "executiveSummary": "An unauthenticated Cross-Site Scripting (XSS) vulnerability exists in the Affiliates Manager plugin for WordPress in versions 2.9.53 and below.\nThis security flaw allows remote, unauthenticated attackers to inject malicious client-side scripts, typically JavaScript, into web pages rendered to legitimate users visiting the affected site.\nThe primary impact of successful exploitation includes session hijacking, unauthorized actions performed on behalf of authenticated users, defacement, and the potential redirection of victims to malicious external domains.\nThe vulnerability affects all deployments running vulnerable versions of the Affiliates Manager product without requiring prior authentication, specific privileges, or complex user interaction beyond visiting a crafted URL.\nThe risk implications are significant, as malicious payloads execute within the context of the victim's browser session, potentially compromising administrative accounts if an administrator interacts with the malicious payload.\nRemediation requires updating the Affiliates Manager plugin beyond the affected versions once a vendor patch is made available, alongside implementing robust input sanitization and output encoding controls.",
  "technicalDetails": "The vulnerability is rooted in the improper handling and insufficient sanitization of user-supplied input within the Affiliates Manager plugin.\nSpecifically, parameters processed by the application are reflected directly into the Document Object Model (DOM) or HTTP response without undergoing rigorous context-aware output encoding.\nBecause the vulnerability is unauthenticated, an attacker does not require valid credentials, session tokens, or elevated privileges to interact with the vulnerable endpoint.\nThe attack vector is network-based, allowing remote adversaries to craft a malicious URL containing a payload designed to execute arbitrary JavaScript within the context of a victim's browser session.\nThe attack flow proceeds as follows: First, the attacker identifies a vulnerable input vector within the Affiliates Manager plugin in affected versions <= 2.9.53. Second, the attacker crafts a malicious HTTP request or URI containing the XSS payload, such as a script tag or an event handler injection (e.g., onload, onerror). Third, the attacker induces a victim to click the crafted link or load the malicious resource via social engineering or reflected mechanisms. Fourth, the server processes the request and reflects the unsanitized input back to the browser within the HTTP response. Finally, the victim's browser parses the response, executes the injected script within the security context of the origin site, and allows the attacker to compromise the session or exfiltrate sensitive data such as cookies and session tokens."
}