CVE-2025-23787 Overview
CVE-2025-23787 is a reflected Cross-Site Scripting (XSS) vulnerability in the Foxskav Easy Bet WordPress plugin. The flaw affects all versions up to and including 1.0.7 and stems from improper neutralization of user input during web page generation [CWE-79]. Attackers can craft malicious URLs that, when followed by an authenticated or unauthenticated user, execute arbitrary JavaScript in the victim's browser session. The issue is tracked under the Patchstack database and carries a network-based attack vector requiring user interaction. Successful exploitation can lead to session theft, credential harvesting, or unauthorized actions performed in the context of the targeted user's WordPress session.
Critical Impact
Reflected XSS enables attackers to execute arbitrary JavaScript in victim browsers, potentially compromising WordPress sessions and exposing sensitive site data through crafted links.
Affected Products
- Foxskav Easy Bet WordPress plugin versions through 1.0.7
- WordPress installations with the Easy Bet plugin enabled
- Sites using the easy-bet plugin slug for betting functionality
Discovery Timeline
- 2025-02-14 - CVE-2025-23787 published to NVD
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2025-23787
Vulnerability Analysis
The vulnerability is a reflected Cross-Site Scripting (XSS) flaw classified under [CWE-79]. The Easy Bet plugin accepts user-supplied input through HTTP request parameters and reflects this input back into rendered HTML output without proper sanitization or output encoding. When a victim clicks a crafted link containing JavaScript payloads, the plugin renders the payload inline within the response page.
The vulnerability requires user interaction, as the victim must follow an attacker-supplied link. The scope is changed, meaning successful exploitation can affect resources beyond the vulnerable component, such as other browser-managed contexts. The EPSS score stands at 0.131%, indicating a relatively low predicted probability of exploitation in the near term.
Root Cause
The plugin fails to apply WordPress sanitization functions such as esc_html(), esc_attr(), or wp_kses() before echoing request parameters into HTML responses. This omission allows raw HTML and JavaScript characters to pass into the DOM, where the browser parses them as executable script content rather than display data.
Attack Vector
An attacker constructs a URL pointing to a vulnerable Easy Bet plugin endpoint with malicious JavaScript embedded in a query parameter. The attacker distributes this URL through phishing emails, social media, or malicious advertisements. When a WordPress user with an active session visits the link, the injected script executes under the site's origin, granting access to cookies, local storage, and authenticated API actions. Refer to the Patchstack Easy Bet Plugin Vulnerability advisory for technical details.
Detection Methods for CVE-2025-23787
Indicators of Compromise
- Inbound HTTP requests to Easy Bet plugin endpoints containing <script>, javascript:, onerror=, or onload= patterns in query parameters.
- Unexpected outbound requests from user browsers to attacker-controlled domains following visits to WordPress pages hosting the plugin.
- Web server access logs showing URL-encoded payloads such as %3Cscript%3E directed at easy-bet plugin paths.
Detection Strategies
- Deploy Web Application Firewall (WAF) rules that flag reflected payloads matching common XSS signatures in requests to /wp-content/plugins/easy-bet/ paths.
- Inspect HTTP response bodies for unsanitized reflection of request parameters using DAST tooling against WordPress staging environments.
- Correlate referrer headers and click-through patterns to identify phishing campaigns directing users to crafted Easy Bet URLs.
Monitoring Recommendations
- Enable WordPress audit logging to track plugin activity and administrative session anomalies.
- Forward web server and WAF telemetry to a centralized SIEM for cross-correlation against XSS payload signatures.
- Monitor browser Content Security Policy (CSP) violation reports for inline script execution attempts on pages serving the Easy Bet plugin.
How to Mitigate CVE-2025-23787
Immediate Actions Required
- Identify all WordPress instances running the Easy Bet plugin and verify the installed version against 1.0.7.
- Disable or remove the Easy Bet plugin until a patched release is confirmed by the vendor.
- Apply WAF virtual patching rules to block XSS payloads targeting easy-bet endpoints.
Patch Information
At the time of publication, the Patchstack advisory lists affected versions as "from n/a through <= 1.0.7" without confirming a fixed version. Administrators should consult the Patchstack advisory and the WordPress plugin repository for updates beyond 1.0.7.
Workarounds
- Implement a strict Content Security Policy (CSP) header restricting inline script execution and limiting permitted script sources.
- Configure WAF rules to filter requests containing HTML tags or JavaScript event handlers in parameters processed by the plugin.
- Restrict access to WordPress sites running the plugin through authentication gateways or IP allowlisting where feasible.
# Example Apache CSP header to limit inline script execution
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
