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File Transfer Appliance CVE-2017-8760

MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2017-05-05 cve@mitre.org
6.1
CVSS 3.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 6.1 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 1.04%.

Exploit ScenarioDerived

A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 1.0% exploitation probability (EPSS)

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AnalysisAI

An issue was discovered on Accellion FTA devices before FTA_9_12_180. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. An issue was discovered on Accellion FTA devices before FTA_9_12_180. There is XSS in courier/1000@/index.html with the auth_params parameter. The device tries to use internal WAF filters to stop specific XSS Vulnerabilities. However, these can be bypassed by using some modifications to the payloads, e.g., URL encoding. Affected products include: Accellion File Transfer Appliance.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.1 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

DescriptionCVE.org

An issue was discovered on Accellion FTA devices before FTA_9_12_180. There is XSS in courier/1000@/index.html with the auth_params parameter. The device tries to use internal WAF filters to stop specific XSS Vulnerabilities. However, these can be bypassed by using some modifications to the payloads, e.g., URL encoding.

Threat Intelligence Overview

EPSS Score
1.0%
Top 22% exploitable
Exploit
POC
Public exploit code exists
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 1.0%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

51
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +30
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)CVE.org

cpe:2.3:a:accellion:file_transfer_appliance:*:*:*:*:*:*:*:*
CVE-2015-2857 CRITICAL POC
9.8 Aug 22

Accellion File Transfer Appliance before FTA_9_11_210 allows remote attackers to execute arbitrary code via shell metach

CVE-2015-2856 HIGH POC
7.5 Oct 10

Directory traversal vulnerability in the template function in function.inc in Accellion File Transfer Appliance devices

CVE-2017-8303 CRITICAL POC
9.8 May 05

An issue was discovered on Accellion FTA devices before FTA_9_12_180. Rated critical severity (CVSS 9.8), this vulnerabi

CVE-2017-8794 CRITICAL POC
10.0 May 05

An issue was discovered on Accellion FTA devices before FTA_9_12_180. Rated critical severity (CVSS 10.0), this vulnerab

CVE-2016-2351 CRITICAL POC
9.8 May 07

SQL injection vulnerability in home/seos/courier/security_key2.api on the Accellion File Transfer Appliance (FTA) before

CVE-2017-8790 CRITICAL POC
9.8 May 05

An issue was discovered on Accellion FTA devices before FTA_9_12_180. Rated critical severity (CVSS 9.8), this vulnerabi

CVE-2017-8796 CRITICAL POC
9.8 May 05

An issue was discovered on Accellion FTA devices before FTA_9_12_180. Rated critical severity (CVSS 9.8), this vulnerabi

CVE-2017-8789 CRITICAL POC
9.8 May 05

An issue was discovered on Accellion FTA devices before FTA_9_12_180. Rated critical severity (CVSS 9.8), this vulnerabi

CVE-2017-8793 HIGH POC
8.8 May 05

An issue was discovered on Accellion FTA devices before FTA_9_12_180. Rated high severity (CVSS 8.8), this vulnerability

CVE-2016-2353 HIGH POC
7.8 May 07

The Accellion File Transfer Appliance (FTA) before FTA_9_12_40 allows local users to add an SSH key to an arbitrary grou

CVE-2017-8304 MEDIUM POC
6.1 May 05

An issue was discovered on Accellion FTA devices before FTA_9_12_180. Rated medium severity (CVSS 6.1), this vulnerabili

CVE-2016-2350 MEDIUM POC
6.1 May 07

Multiple cross-site scripting (XSS) vulnerabilities on the Accellion File Transfer Appliance (FTA) before FTA_9_12_40 al

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