sz.chat 4 Messages Box cross site scriting

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CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.03

A vulnerability, which was classified as problematic, was found in sz.chat 4 (Chat Software). This affects an unknown code block of the component Messages Box Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-80. This is going to have an impact on integrity. An attacker might be able to inject arbitrary html and script code into the web site. This would alter the appearance and would make it possible to initiate further attacks against site visitors. The summary by CVE is:

sz.chat version 4 allows injection of web scripts and HTML in the message box.

The weakness was shared 07/19/2021. The advisory is shared at borrachariadofael.sz.chat. This vulnerability is uniquely identified as CVE-2021-3279 since 01/22/2021. The exploitability is told to be easy. It is possible to initiate the attack remotely. The requirement for exploitation is a authentication. 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.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

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

Exploitinginfoedit

Class: Cross site scripting
CWE: CWE-80
ATT&CK: T1059.007

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

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

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

01/22/2021 CVE assigned
07/19/2021 +177 days Advisory disclosed
07/19/2021 +0 days VulDB entry created
07/22/2021 +3 days VulDB last update

Sourcesinfoedit

Advisory: borrachariadofael.sz.chat
Status: Not defined

CVE: CVE-2021-3279 (🔒)

Entryinfoedit

Created: 07/19/2021 07:23 PM
Updated: 07/22/2021 08:57 AM
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍

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