Microweber up to 1.2.12 Copy/Paste cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Microweber up to 1.2.12. It has been rated as problematic. Affected by this issue is some unknown functionality of the component Copy/Paste Handler. The manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2021-32856. Remote exploitation of the attack is possible. No exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Microweber up to 1.2.12 and classified as problematic. This issue affects an unknown function of the component Copy/Paste Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. 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:

Microweber is a drag and drop website builder and content management system. Versions 1.2.12 and prior are vulnerable to copy-paste cross-site scripting (XSS). For this particular type of XSS, the victim needs to be fooled into copying a malicious payload into the text editor. A fix was attempted in versions 1.2.9 and 1.2.12, but it is incomplete.

The weakness was published 02/21/2023 as GHSL-2021-1005. The advisory is shared at securitylab.github.com. The identification of this vulnerability is CVE-2021-32856 since 05/12/2021. 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.

Applying the patch f3b86d59ab674dbf514f9f9948ddfa091739ab75 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-0744). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

License

Website

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: 🔍

CNA Base Score: 6.1
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

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

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: f3b86d59ab674dbf514f9f9948ddfa091739ab75

Timelineinfo

05/12/2021 🔍
02/21/2023 +650 days 🔍
02/21/2023 +0 days 🔍
07/05/2025 +865 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSL-2021-1005
Status: Confirmed

CVE: CVE-2021-32856 (🔍)
GCVE (CVE): GCVE-0-2021-32856
GCVE (VulDB): GCVE-100-221585
EUVD: 🔍

Entryinfo

Created: 02/21/2023 20:59
Updated: 07/05/2025 18:05
Changes: 02/21/2023 20:59 (51), 07/05/2025 18:05 (20)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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