What is the CVSS score of CVE-2017-8793?

CVE-2017-8793 has a CVSS 3.0 base score of 8.8 (High). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Is there a public PoC exploit available for CVE-2017-8793?

Yes, a public proof-of-concept exploit is available for CVE-2017-8793. Prioritise patching immediately. EPSS: 0.1%.

PHP CVE-2017-8793

HIGH

Origin Validation Error (CWE-346)

2017-05-05 cve@mitre.org

Authentication Bypass PHP File Transfer Appliance

8.8

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

May 05, 2017 - 18:29 cve.org

HIGH 8.8

DescriptionCVE.org

An issue was discovered on Accellion FTA devices before FTA_9_12_180. By sending a POST request to home/seos/courier/web/wmProgressstat.html.php with an attacker domain in the acallow parameter, the device will respond with an Access-Control-Allow-Origin header allowing the attacker to have site access with a bypass of the Same Origin Policy.

AnalysisAI

An issue was discovered on Accellion FTA devices before FTA_9_12_180. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-346. An issue was discovered on Accellion FTA devices before FTA_9_12_180. By sending a POST request to home/seos/courier/web/wmProgressstat.html.php with an attacker domain in the acallow parameter, the device will respond with an Access-Control-Allow-Origin header allowing the attacker to have site access with a bypass of the Same Origin Policy. Affected products include: Accellion File Transfer Appliance.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.