Live Helper Chat up to 3.43 BBcode Chat Message Stored cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Live Helper Chat up to 3.43. Affected is an unknown function of the component BBcode Handler. This manipulation as part of Chat Message causes cross site scripting (Stored). This vulnerability is registered as CVE-2020-26134. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Live Helper Chat up to 3.43 (Chat Software). It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component BBcode Handler. The manipulation as part of a Chat Message leads to a cross site scripting vulnerability (Stored). The CWE definition for the vulnerability is CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. As an impact it is known to affect integrity. The summary by CVE is:

Live Helper Chat before 3.44v allows stored XSS in chat messages with an operator via BBCode.

The weakness was published 10/02/2020. This vulnerability is known as CVE-2020-26134 since 09/29/2020. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 3.44v eliminates this vulnerability.

Similar entry is available at VDB-162206. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Chat Software

Name

• Live Helper Chat

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7
• 3.8
• 3.9
• 3.10
• 3.11
• 3.12
• 3.13
• 3.14
• 3.15
• 3.16
• 3.17
• 3.18
• 3.19
• 3.20
• 3.21
• 3.22
• 3.23
• 3.24
• 3.25
• 3.26
• 3.27
• 3.28
• 3.29
• 3.30
• 3.31
• 3.32
• 3.33
• 3.34
• 3.35
• 3.36
• 3.37
• 3.38
• 3.39
• 3.40
• 3.41
• 3.42
• 3.43

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

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

Discussion