CVE-2024-41953: zitadel XSS — Fix

Description

Zitadel is an open source identity management system. ZITADEL uses HTML for emails and renders certain information such as usernames dynamically. That information can be entered by users or administrators. Due to a missing output sanitization, these emails could include malicious code. This may potentially lead to a threat where an attacker, without privileges, could send out altered notifications that are part of the registration processes. An attacker could create a malicious link, where the injected code would be rendered as part of the email. On the user's detail page, the username was also not sanitized and would also render HTML, giving an attacker the same vulnerability. While it was possible to inject HTML including javascript, the execution of such scripts would be prevented by most email clients and the Content Security Policy in Console UI. This vulnerability is fixed in 2.58.1, 2.57.1, 2.56.2, 2.55.5, 2.54.8 2.53.9, and 2.52.3.

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CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
zitadel	zitadel	2.52.0 — 2.52.3
zitadel	zitadel	2.53.0 — 2.53.9
zitadel	zitadel	2.54.0 — 2.54.8
zitadel	zitadel	2.55.0 — 2.55.5
zitadel	zitadel	2.56.0 — 2.56.2
zitadel	zitadel	All
zitadel	zitadel	All
zitadel	zitadel	All
zitadel	zitadel	All

References

Advisories & Patches

https://github.com/zitadel/zitadel/commit/0e1f99e987b5851caec45a72660fe9f67e425747 https://github.com/zitadel/zitadel/commit/38da602ee1cfc35c0d7918c298fbfc3f3674133b https://github.com/zitadel/zitadel/commit/4b59cac67bb89c1f3f84a2041dd273d11151d29f https://github.com/zitadel/zitadel/commit/c1a3fc72dde16e987d8a09aa291e7c2edfc928f7 https://github.com/zitadel/zitadel/commit/c353f82f89c6982c0888c6763363296cf4263cb2 https://github.com/zitadel/zitadel/commit/d04ac6df8f2f0243e649b802a8bfa6176cef0923 https://github.com/zitadel/zitadel/commit/f846616a3f022e88e3ea8cea05d3254ad86f1615 https://github.com/zitadel/zitadel/security/advisories/GHSA-v333-7h2p-5fhv

Other References

https://github.com/zitadel/zitadel/releases/tag/v2.52.3 https://github.com/zitadel/zitadel/releases/tag/v2.53.9 https://github.com/zitadel/zitadel/releases/tag/v2.54.8 https://github.com/zitadel/zitadel/releases/tag/v2.55.5 https://github.com/zitadel/zitadel/releases/tag/v2.56.2 https://github.com/zitadel/zitadel/releases/tag/v2.57.1 https://github.com/zitadel/zitadel/releases/tag/v2.58.1

Frequently Asked Questions

What is CVE-2024-41953? +

Zitadel is an open source identity management system. ZITADEL uses HTML for emails and renders certain information such as usernames dynamically. That information can be entered by users or administrators. Due to a missing output sanitization, these emails could include malicious code. This may potentially lead to a threat where an attacker, without privileges, could send out altered notifications that are part of the registration processes. An attacker could create a malicious link, where the injected code would be rendered as part of the email. On the user's detail page, the username was also not sanitized and would also render HTML, giving an attacker the same vulnerability. While it was possible to inject HTML including javascript, the execution of such scripts would be prevented by most email clients and the Content Security Policy in Console UI. This vulnerability is fixed in 2.58.1, 2.57.1, 2.56.2, 2.55.5, 2.54.8 2.53.9, and 2.52.3. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2024-41953? +

CVE-2024-41953 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-41953? +

CVE-2024-41953 affects products from zitadel, specifically: zitadel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-41953? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-41953