Appspace 6.2.4 Network Tab cross site scripting

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CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.07

A vulnerability classified as problematic was found in Appspace 6.2.4. This vulnerability affects an unknown code of the component Network Tab. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. As an impact it is known to affect 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. CVE summarizes:

A stored XSS issue exists in Appspace 6.2.4. After a user is authenticated and enters an XSS payload under the groups section of the network tab, it is stored as the group name. Whenever another member visits that group, this payload executes.

The weakness was disclosed 02/22/2021. The advisory is shared for download at github.com. This vulnerability was named CVE-2021-27564 since 02/22/2021. The exploitation appears to be easy. The attack can be initiated remotely. A single authentication is needed for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

It is declared as proof-of-concept. It is possible to download the exploit at github.com.

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: 4.4
VulDB Meta Temp Score: 4.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔒

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VulDB Base Score: 🔒
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VulDB Reliability: 🔍

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Exploitinginfoedit

Class: Cross site scripting
CWE: CWE-79
ATT&CK: T1059.007

Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

02/22/2021 Advisory disclosed
02/22/2021 +0 days CVE assigned
02/22/2021 +0 days VulDB entry created
03/04/2021 +10 days VulDB last update

Sourcesinfoedit

Advisory: github.com
Status: Not defined

CVE: CVE-2021-27564 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfoedit

Created: 02/22/2021 11:14 PM
Updated: 03/04/2021 11:29 AM
Changes: (18) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
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