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CVE-2024-28855— ZITADEL vulnerable to improper HTML sanitization

Quick assessment

Affected
zitadel zitadel
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ZITADEL是瑞士ZITADEL开源的一个 Auth0、Firebase Auth、AWS Cognito 以及为容器和无服务器时代构建的 Keycloak 的现代开源替代方案。 ZITADEL存在安全漏洞，该漏洞源于不当的HTML清理，攻击者可以创建恶意链接并在其中注入代码。

CVSS 8.1 · High EPSS 0.78% · P56
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I. Basic Information for CVE-2024-28855

Vulnerability Information
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Vulnerability Title
ZITADEL vulnerable to improper HTML sanitization
Source: CVE Program / CVE List V5
Vulnerability Description
ZITADEL, open source authentication management software, uses Go templates to render the login UI. Due to a improper use of the `text/template` instead of the `html/template` package, the Login UI did not sanitize input parameters prior to versions 2.47.3, 2.46.1, 2.45.1, 2.44.3, 2.43.9, 2.42.15, and 2.41.15. An attacker could create a malicious link, where he injected code which would be rendered as part of the login screen. While it was possible to inject HTML including JavaScript, the execution of such scripts would be prevented by the Content Security Policy. Versions 2.47.3, 2.46.1, 2.45.1, 2.44.3, 2.43.9, 2.42.15, and 2.41.15 contain a patch for this issue. No known workarounds are available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
ZITADEL 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ZITADEL是瑞士ZITADEL开源的一个 Auth0、Firebase Auth、AWS Cognito 以及为容器和无服务器时代构建的 Keycloak 的现代开源替代方案。 ZITADEL存在安全漏洞，该漏洞源于不当的HTML清理，攻击者可以创建恶意链接并在其中注入代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
zitadel zitadel < 2.41.15 -

II. Public POCs for CVE-2024-28855

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 6810 chars
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III. Intelligence Information for CVE-2024-28855

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Vendor Advisories for CVE-2024-28855 (1)

Other References for CVE-2024-28855 (7)

IV. Related Vulnerabilities

Same product: zitadel
Same vendor: zitadel
Same weakness: CWE-20