CVE-2025-46654

CVE-2025-46654 affects CodiMD up to version 2.2.0, where a CSP-based XSS protection can be bypassed by uploading an HTML file that references an uploaded JavaScript file. Documented impact is cross-site scripting due to this bypass; the vulnerability applies to 2.2.0 and earlier. No exploit detai...

CVE-2025-46655

CodiMD through 2.5.4 has a CSP-based protection mechanism against XSS through uploaded SVG documents containing JavaScript, but it can be bypassed in certain cases of different-origin file storage, such as AWS S3. NOTE: it can be considered a user error if AWS is employed for hosting untrusted...

PT-2025-17963

Name of the Vulnerable Software and Affected Versions CodiMD versions 2.2.0 and earlier Description The issue concerns a bypass of the Content Security Policy CSP protection mechanism against Cross-Site Scripting XSS attacks. This can be achieved by uploading a .html file that references an...

CVE-2025-46655

CodiMD through 2.5.4 has a CSP-based protection mechanism against XSS through uploaded SVG documents containing JavaScript, but it can be bypassed in certain cases of different-origin file storage, such as AWS S3. NOTE: it can be considered a user error if AWS is employed for hosting untrusted...

CVE-2025-46654

CodiMD through 2.2.0 has a CSP-based protection mechanism against XSS through uploaded JavaScript content, but it can be bypassed by uploading a .html file that references an uploaded .js file...

CVE-2024-38354

CodiMD allows realtime collaborative markdown notes on all platforms. The notebook feature of Hackmd.io permits the rendering of iframe HTML tags with an improperly sanitized name attribute. This vulnerability enables attackers to perform cross-site scripting XSS attacks via DOM clobbering. This...

CVE-2024-38353

CodiMD allows realtime collaborative markdown notes on all platforms. CodiMD before 2.5.4 is missing authentication and access control vulnerability allowing an unauthenticated attacker to gain unauthorised access to image data uploaded to CodiMD. CodiMD does not require valid authentication to...

CVE-2024-38354

CodiMD allows realtime collaborative markdown notes on all platforms. The notebook feature of Hackmd.io permits the rendering of iframe HTML tags with an improperly sanitized name attribute. This vulnerability enables attackers to perform cross-site scripting XSS attacks via DOM clobbering. This...

CVE-2024-38353 CodiMD - Missing Image Access Controls and Unauthorized Image Access

CodiMD allows realtime collaborative markdown notes on all platforms. CodiMD before 2.5.4 is missing authentication and access control vulnerability allowing an unauthenticated attacker to gain unauthorised access to image data uploaded to CodiMD. CodiMD does not require valid authentication to...

CVE-2024-38353

CVE-2024-38353 (CodiMD) affects CodiMD prior to 2.5.4, where an unauthenticated attacker can access uploaded image data due to missing authentication and access controls. The underlying issue is insecure filename generation in the Formidable library, enabling an attacker who can guess an image UR...

CVE-2024-38353 CodiMD - Missing Image Access Controls and Unauthorized Image Access

CodiMD allows realtime collaborative markdown notes on all platforms. CodiMD before 2.5.4 is missing authentication and access control vulnerability allowing an unauthenticated attacker to gain unauthorised access to image data uploaded to CodiMD. CodiMD does not require valid authentication to...

CVE-2024-38353 CodiMD - Missing Image Access Controls and Unauthorized Image Access

CodiMD allows realtime collaborative markdown notes on all platforms. CodiMD before 2.5.4 is missing authentication and access control vulnerability allowing an unauthenticated attacker to gain unauthorised access to image data uploaded to CodiMD. CodiMD does not require valid authentication to...

CVE-2024-38354

CVE-2024-38354 affects CodiMD/HackMD.io notes, where the notebook feature allows rendering of iframe HTML tags with an improperly sanitized name attribute, enabling DOM clobbering-based XSS. The issue, fixed in version 2.5.4, impacts note collaboration environments that render untrusted HTML. No ...

CVE-2024-38354 Cross-site Scripting in Hackmd.io Notes lead by HTML Injection

CodiMD allows realtime collaborative markdown notes on all platforms. The notebook feature of Hackmd.io permits the rendering of iframe HTML tags with an improperly sanitized name attribute. This vulnerability enables attackers to perform cross-site scripting XSS attacks via DOM clobbering. This...

CVE-2024-38354 Cross-site Scripting in Hackmd.io Notes lead by HTML Injection

CodiMD allows realtime collaborative markdown notes on all platforms. The notebook feature of Hackmd.io permits the rendering of iframe HTML tags with an improperly sanitized name attribute. This vulnerability enables attackers to perform cross-site scripting XSS attacks via DOM clobbering. This...

CVE-2024-38354 Cross-site Scripting in Hackmd.io Notes lead by HTML Injection

CodiMD allows realtime collaborative markdown notes on all platforms. The notebook feature of Hackmd.io permits the rendering of iframe HTML tags with an improperly sanitized name attribute. This vulnerability enables attackers to perform cross-site scripting XSS attacks via DOM clobbering. This...

CodiMD Security Vulnerabilities

CodiMD is a real-time collaborative note-taking application open-sourced by HackMD. A security vulnerability exists in CodiMD version 2.5.3 that stems from a lack of authentication and access control vulnerability that allows an unauthenticated attacker to gain unauthorized access to uploaded ima...

CodiMD Security Vulnerabilities

CodiMD is a real-time collaborative note-taking application open-sourced by HackMD. A security vulnerability exists in CodiMD version 2.5.3, which stems from a vulnerability that allows rendering of HTML tags with improperly cleaned up tags, which enables an attacker to perform cross-site scripti...

CVE-2024-38353: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

CodiMD allows realtime collaborative markdown notes on all platforms. CodiMD before 2.5.4 is missing authentication and access control vulnerability allowing an unauthenticated attacker to gain unauthorised access to image data uploaded to CodiMD. CodiMD does not require valid authentication to...

CVE-2024-38354: Improper Neutralization of Input During Web Page Generation

CodiMD allows realtime collaborative markdown notes on all platforms. The notebook feature of Hackmd.io permits the rendering of iframe HTML tags with an improperly sanitized name attribute. This vulnerability enables attackers to perform cross-site scripting XSS attacks via DOM clobbering. This...