CVE-2023-26040

Discourse chat messages susceptible to Cross-site Scripting through chat excerpts

Discourse is an open-source discussion platform. Between versions 3.1.0.beta2 and 3.1.0.beta3 of the `tests-passed` branch, editing or responding to a chat message containing malicious content could lead to a cross-site scripting attack. This issue is patched in version 3.1.0.beta3 of the `tests-passed` branch. There are no known workarounds.

We have discovered 1,186 live websites that are affected by CVE-2023-26040.

Contact us to get more info



Affected Software

Product  Discourse
Category Message Boards
Vulnerable Domains1,186 live websites (22.70% of Discourse install base)
Vulnerable Versions
  • from 0 before 3.1
Vulnerable Versions Count78 versions ( 82.11% of all versions)


Common Weakness Enumeration

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')



Details

  • Published - Mar 17, 2023
  • Updated - Aug 2, 2024

CVE-2023-26040 usage by Country

United States810 websites


Germany100 websites
France55 websites
Singapore35 websites
China26 websites
GB18 websites
Brazil11 websites
Netherlands11 websites
Switzerland10 websites

CVE-2023-26040 usage by TLD

.com497 websites
.org193 websites
.io59 websites
.net51 websites
.de25 websites
.fr15 websites
.co14 websites
.eu12 websites
.ru12 websites
.com.br10 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2023-26040

Top websites that are affected by CVE-2023-26040. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
*********.***.com France*,***
*********.*******.org United States**,***
******.********.com United States**,***
*********.***************.com United States**,***
*********.**********.de Germany***,***
*********.*********.com ***,***
*********.**********.io United States***,***
***.***********.org Germany***,***
*****.******.com United States***,***
***********.net United States***,***
See full domain list

FAQ

CVE-2023-26040 is Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Discourse
A total of 1,186 websites have been identified as vulnerable to CVE-2023-26040, discovered through global website indexing conducted by WebTechSurvey.
Discourse is susceptible to CVE-2023-26040 vulnerability.
Discourse versions before 3.1 are vulnerable to CVE-2023-26040.
Version 3.1 of Discourse addresses the CVE-2023-26040 security vulnerability.