CVE-2024-28855: Github.com/zitadel/zitadel Improper HTML Sanitization Vulnerability

HIGH
Advisory Identifier: GHSA-hfrg-4jwr-jfpj
CVSS 8.1
CWE-20 CWE-79
Published
Advisory Summary

CVE-2024-28855 is a HIGH (CVSS 8.1) improper html sanitization vulnerability (CWE-20: Improper Input Validation) affecting Github.com/zitadel/zitadel libraries in the Go ecosystem. The issue involves improper html sanitization in zitadel. Remediation is available by upgrading affected packages to version 2.41.15, 2.42.15, 2.43.9, 2.44.3, 2.45.1, 2.46.1, 2.47.4, 0.0.0-20240311065202-07ec2efa9dc6, 1.80.0-v2.20.0.20240311065202-07ec2efa9dc6.

CVE-2024-28855 at a Glance

CVE Identifier CVE-2024-28855
GHSA Identifier GHSA-hfrg-4jwr-jfpj
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-20: Improper Input Validation
Affected Product Github.com/zitadel/zitadel
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 8.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2024-28855

To remediate this vulnerability, upgrade all affected Github.com/zitadel/zitadel dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/zitadel/zitadel fixed: 2.41.15
Upgrade github.com/zitadel/zitadel to 2.41.15
github.com/zitadel/zitadel fixed: 2.42.15
Upgrade github.com/zitadel/zitadel to 2.42.15
github.com/zitadel/zitadel fixed: 2.43.9
Upgrade github.com/zitadel/zitadel to 2.43.9
github.com/zitadel/zitadel fixed: 2.44.3
Upgrade github.com/zitadel/zitadel to 2.44.3
github.com/zitadel/zitadel fixed: 2.45.1
Upgrade github.com/zitadel/zitadel to 2.45.1
github.com/zitadel/zitadel fixed: 2.46.1
Upgrade github.com/zitadel/zitadel to 2.46.1
github.com/zitadel/zitadel fixed: 2.47.4
Upgrade github.com/zitadel/zitadel to 2.47.4
github.com/zitadel/zitadel fixed: 0.0.0-20240311065202-07ec2efa9dc6
Upgrade github.com/zitadel/zitadel to 0.0.0-20240311065202-07ec2efa9dc6
github.com/zitadel/zitadel fixed: 1.80.0-v2.20.0.20240311065202-07ec2efa9dc6
Upgrade github.com/zitadel/zitadel to 1.80.0-v2.20.0.20240311065202-07ec2efa9dc6
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

inspect dependencies for github.com/zitadel/zitadel

How to Check if You Are Affected

To determine whether your application is affected by CVE-2024-28855, inspect your project dependencies for Github.com/zitadel/zitadel:

inspect dependencies for github.com/zitadel/zitadel

Analyze the terminal output to locate any version of Github.com/zitadel/zitadel in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.41.15), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Github.com/zitadel/zitadel, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact ZITADEL 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. 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. ### Patches 2.x versions are fixed on >= [2.47.3](https://github.com/zitadel/zitadel/releases/tag/v2.47.3) 2.46.x versions are fixed on >= [2.46.1](https://github.com/zitadel/zitadel/releases/tag/v2.46.1) 2.45.x versions are fixed on >= [2.45.1](https://github.com/zitadel/zitadel/releases/tag/v2.45.1) 2.44.x versions are fixed on >= [2.44.3](https://github.com/zitadel/zitadel/releases/tag/v2.44.3) 2.43.x versions are fixed on >= [2.43.9](https://github.com/zitadel/zitadel/releases/tag/v2.43.9) 2.42.x versions are fixed on >= [2.42.15](https://github.com/zitadel/zitadel/releases/tag/v2.42.15) 2.41.x versions are fixed on >= [2.41.15](https://github.com/zitadel/zitadel/releases/tag/v2.41.15) ZITADEL recommends upgrading to the latest versions available in due course. ### Workarounds There is no workaround since a patch is already available. ### Questions If you have any questions or comments about this advisory, please email us at [security@zitadel.com](mailto:security@zitadel.com) ### Credits Thanks to Daniel Philipp - owt and Thomas Wickham - synopsis for reporting this.

CVE-2024-28855 Affected Github.com/zitadel/zitadel Versions

9 component(s)
Fixed Versions:
2.41.152.42.152.43.92.44.32.45.12.46.12.47.40.0.0-20240311065202-07ec2efa9dc61.80.0-v2.20.0.20240311065202-07ec2efa9dc6
Product / Package Ecosystem Affected Versions Fixed Version
github.com/zitadel/zitadel
Go
≥ 1.80.1
< 2.41.15
2.41.15
github.com/zitadel/zitadel
Go
≥ 2.42.0
< 2.42.15
2.42.15
github.com/zitadel/zitadel
Go
≥ 2.43.0
< 2.43.9
2.43.9
github.com/zitadel/zitadel
Go
≥ 2.44.0
< 2.44.3
2.44.3
github.com/zitadel/zitadel
Go
≥ 2.45.0
< 2.45.1
All 1 versions
2.45.0
2.45.1
github.com/zitadel/zitadel
Go
≥ 2.46.0
< 2.46.1
All 1 versions
2.46.0
2.46.1
github.com/zitadel/zitadel
Go
≥ 2.47.0
< 2.47.4
2.47.4
github.com/zitadel/zitadel
Go
< 0.0.0-20240311065202-07ec2efa9dc6
0.0.0-20240311065202-07ec2efa9dc6
github.com/zitadel/zitadel
Go
≥ 0.0.0
< 1.80.0-v2.20.0.20240311065202-07ec2efa9dc6
1.80.0-v2.20.0.20240311065202-07ec2efa9dc6

References

Frequently Asked Questions

What is CVE-2024-28855?
CVE-2024-28855 is a security vulnerability in Github.com/zitadel/zitadel involving Improper HTML sanitization in ZITADEL under CWE-20: Improper Input Validation.
Which Github.com/zitadel/zitadel versions are affected?
Affected versions include releases prior to 2.41.15, 2.42.15, 2.43.9, 2.44.3, 2.45.1, 2.46.1, 2.47.4, 0.0.0-20240311065202-07ec2efa9dc6, 1.80.0-v2.20.0.20240311065202-07ec2efa9dc6 across affected packages: github.com/zitadel/zitadel.
What version fixes CVE-2024-28855?
Upgrading to 2.41.15, 2.42.15, 2.43.9, 2.44.3, 2.45.1, 2.46.1, 2.47.4, 0.0.0-20240311065202-07ec2efa9dc6, 1.80.0-v2.20.0.20240311065202-07ec2efa9dc6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/zitadel/zitadel affected?
Yes, github.com/zitadel/zitadel is affected in releases prior to 2.41.15, 2.42.15, 2.43.9, 2.44.3, 2.45.1, 2.46.1, 2.47.4, 0.0.0-20240311065202-07ec2efa9dc6, 1.80.0-v2.20.0.20240311065202-07ec2efa9dc6. Upgrade your dependency to 2.41.15, 2.42.15, 2.43.9, 2.44.3, 2.45.1, 2.46.1, 2.47.4, 0.0.0-20240311065202-07ec2efa9dc6, 1.80.0-v2.20.0.20240311065202-07ec2efa9dc6 or later.
What is the CVSS score of CVE-2024-28855?
CVE-2024-28855 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2024-28855?
CVE-2024-28855 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Go dependencies for CVE-2024-28855?
Run the dependency tree command: 'inspect dependencies for github.com/zitadel/zitadel'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-hfrg-4jwr-jfpj",
  "modified" : "2025-07-08T19:26:15Z",
  "published" : "2024-03-18T20:34:00Z",
  "aliases" : [ "CVE-2024-28855" ],
  "summary" : "Improper HTML sanitization in ZITADEL",
  "details" : "### Impact\n\nZITADEL uses Go templates to render the login UI.\n\nDue to a improper use of the `text/template` instead of the `html/template` package, the Login UI did not sanitize input parameters. An attacker could create a malicious link, where he injected code which would be rendered as part of the login screen.\nWhile it was possible to inject HTML including javascript, the execution of such scripts would be prevented by the Content Security Policy.\n\n### Patches\n\n2.x versions are fixed on >= [2.47.3](https://github.com/zitadel/zitadel/releases/tag/v2.47.3)\n2.46.x versions are fixed on >= [2.46.1](https://github.com/zitadel/zitadel/releases/tag/v2.46.1)\n2.45.x versions are fixed on >= [2.45.1](https://github.com/zitadel/zitadel/releases/tag/v2.45.1)\n2.44.x versions are fixed on >= [2.44.3](https://github.com/zitadel/zitadel/releases/tag/v2.44.3)\n2.43.x versions are fixed on >= [2.43.9](https://github.com/zitadel/zitadel/releases/tag/v2.43.9)\n2.42.x versions are fixed on >= [2.42.15](https://github.com/zitadel/zitadel/releases/tag/v2.42.15)\n2.41.x versions are fixed on >= [2.41.15](https://github.com/zitadel/zitadel/releases/tag/v2.41.15)\n\nZITADEL recommends upgrading to the latest versions available in due course.\n\n### Workarounds\n\nThere is no workaround since a patch is already available.\n\n### Questions\n\nIf you have any questions or comments about this advisory, please email us at [security@zitadel.com](mailto:security@zitadel.com)\n\n### Credits\n\nThanks to Daniel Philipp - owt and Thomas Wickham - synopsis for reporting this.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"
  } ],
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    },
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    },
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      "events" : [ {
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    } ],
    "versions" : [ "2.45.0" ]
  }, {
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    } ],
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      "name" : "github.com/zitadel/zitadel"
    },
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    "package" : {
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      "name" : "github.com/zitadel/zitadel"
    },
    "ranges" : [ {
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      "events" : [ {
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      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/zitadel/zitadel/security/advisories/GHSA-hfrg-4jwr-jfpj"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-28855"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zitadel/zitadel/commit/07ec2efa9dc62f7a6c3a58c112b2879d24bc3e3c"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/zitadel/zitadel"
  }, {
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    "url" : "https://github.com/zitadel/zitadel/releases/tag/v2.41.15"
  }, {
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    "url" : "https://github.com/zitadel/zitadel/releases/tag/v2.42.15"
  }, {
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    "url" : "https://github.com/zitadel/zitadel/releases/tag/v2.43.9"
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    "url" : "https://github.com/zitadel/zitadel/releases/tag/v2.45.1"
  }, {
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    "url" : "https://github.com/zitadel/zitadel/releases/tag/v2.46.1"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zitadel/zitadel/releases/tag/v2.47.3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20", "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-03-18T20:34:00Z",
    "nvd_published_at" : "2024-03-18T22:15:08Z"
  }
}