Jan Cernik

5 exploits Active since Mar 2023
CVE-2024-35234 WRITEUP MEDIUM WRITEUP
Discourse < 3.2.3 and < 3.3.0.beta3 - Cross-Site Scripting via Malicious Meta Tags
Discourse is an open-source discussion platform. Prior to version 3.2.3 on the `stable` branch and version 3.3.0.beta3 on the `tests-passed` branch, an attacker can execute arbitrary JavaScript on users’ browsers by posting a specific URL containing maliciously crafted meta tags. This issue only affects sites with Content Security Polic (CSP) disabled. The problem has been patched in version 3.2.3 on the `stable` branch and version 3.3.0.beta3 on the `tests-passed` branch. As a workaround, ensure CSP is enabled on the forum.
CVSS 4.2
CVE-2024-37165 WRITEUP MEDIUM WRITEUP
Discourse < 3.2.3 - Cross-Site Scripting via Onebox Data
Discourse is an open source discussion platform. Prior to 3.2.3 and 3.3.0.beta3, improperly sanitized Onebox data could lead to an XSS vulnerability in some situations. This vulnerability only affects Discourse instances which have disabled the default Content Security Policy. This vulnerability is fixed in 3.2.3 and 3.3.0.beta3.
CVSS 6.3
CVE-2023-26040 WRITEUP MEDIUM WRITEUP
Discourse 3.1.0.beta2-3.1.0.beta3 - Stored Cross-Site Scripting via Chat Message Editing
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.
CVSS 6.5
CVE-2024-35234 WRITEUP MEDIUM WRITEUP
Discourse < 3.2.3 and < 3.3.0.beta3 - Cross-Site Scripting via Malicious Meta Tags
Discourse is an open-source discussion platform. Prior to version 3.2.3 on the `stable` branch and version 3.3.0.beta3 on the `tests-passed` branch, an attacker can execute arbitrary JavaScript on users’ browsers by posting a specific URL containing maliciously crafted meta tags. This issue only affects sites with Content Security Polic (CSP) disabled. The problem has been patched in version 3.2.3 on the `stable` branch and version 3.3.0.beta3 on the `tests-passed` branch. As a workaround, ensure CSP is enabled on the forum.
CVSS 4.2
CVE-2024-37165 WRITEUP MEDIUM WRITEUP
Discourse < 3.2.3 - Cross-Site Scripting via Onebox Data
Discourse is an open source discussion platform. Prior to 3.2.3 and 3.3.0.beta3, improperly sanitized Onebox data could lead to an XSS vulnerability in some situations. This vulnerability only affects Discourse instances which have disabled the default Content Security Policy. This vulnerability is fixed in 3.2.3 and 3.3.0.beta3.
CVSS 6.3