VDB-113573 · CVE-2017-16755 · GCVE-0-2017-16755

Userscape HelpSpot up to 4.7.1 index.php?pg=moderated Parameter Reflected cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Userscape HelpSpot up to 4.7.1. It has been classified as problematic. This impacts an unknown function of the file index.php?pg=moderated. The manipulation as part of Parameter leads to cross site scripting (Reflected). This vulnerability is listed as CVE-2017-16755. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Userscape HelpSpot up to 4.7.1. This issue affects an unknown code block of the file index.php?pg=moderated. The manipulation as part of a Parameter leads to a cross site scripting vulnerability (Reflected). Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is:

An issue was discovered in Userscape HelpSpot before 4.7.2. A reflected cross-site scripting vulnerability exists in the "return" parameter of the "index.php?pg=moderated" endpoint. It executes when the return link is clicked.

The bug was discovered 02/06/2018. The weakness was presented 02/19/2018 (Website). The advisory is shared at ruby.sh. The identification of this vulnerability is CVE-2017-16755 since 11/09/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 4.7.2 eliminates this vulnerability.

See VDB-113574 for similar entry. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Userscape

Name

HelpSpot

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Reflected
Class: Cross site scripting / Reflected
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: HelpSpot 4.7.2

Timelineinfo

11/09/2017 🔍
02/06/2018 +89 days 🔍
02/19/2018 +13 days 🔍
02/19/2018 +0 days 🔍
02/20/2018 +1 days 🔍
01/06/2020 +685 days 🔍

Sourcesinfo

Advisory: ruby.sh
Status: Not defined

CVE: CVE-2017-16755 (🔍)
GCVE (CVE): GCVE-0-2017-16755
GCVE (VulDB): GCVE-100-113573
See also: 🔍

Entryinfo

Created: 02/20/2018 08:09
Updated: 01/06/2020 17:49
Changes: 02/20/2018 08:09 (61), 01/06/2020 17:49 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.