CVE-2024-49377: OctoPrint Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-xvxq-g8hw-fx4g
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CVSS 5.5
CWE-79
Published
Advisory Summary

CVE-2024-49377 is a MODERATE (CVSS 5.5) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting OctoPrint libraries in the PyPI ecosystem. The issue involves octoprint vulnerable to reflected xss in jinja2 templates. Remediation is available by upgrading affected packages to version 1.10.3.

CVE-2024-49377 at a Glance

CVE Identifier CVE-2024-49377
GHSA Identifier GHSA-xvxq-g8hw-fx4g
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product OctoPrint
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 5.5

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

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

How to Fix CVE-2024-49377

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

OctoPrint fixed: 1.10.3 
pip install OctoPrint>=1.10.3
Verify Direct and Transitive Dependencies

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

pip show OctoPrint

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2024-49377, inspect your installed packages using pip:

pip show OctoPrint

Analyze the terminal output to locate any version of OctoPrint in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.10.3), your application is affected.

Note: The pip show OctoPrint command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In OctoPrint, 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 OctoPrint versions up until and including 1.10.2 are vulnerable to reflected XSS vulnerabilities through its Jinja2 template system, as this is not configured to enforce automatic escaping. This affects, among other places, the login dialog and the standalone application key confirmation dialog. An attacker who successfully talked a victim into clicking on or through a malicious third party app successfully redirected a victim to a specially crafted link could use this to retrieve or modify sensitive configuration settings, interrupt prints or otherwise interact with the OctoPrint instance in a malicious way. ### Patches The above mentioned specific vulnerabilities of the login dialog and the standalone application key confirmation dialog will be patched in the bugfix release 1.10.3 by individual escaping of the detected locations. A global change throughout all of OctoPrint's templating system with the upcoming 1.11.0 release will handle this further, switching to globally enforced automatic escaping and thus reducing the attack surface in general. The latter will also improve the security of third party plugins. During a transition period, third party plugins will be able to opt into the automatic escaping. With OctoPrint 1.13.0, automatic escaping will be switched over to be enforced even for third party plugins, unless they explicitly opt-out. ### Credits This vulnerability was discovered and responsibly disclosed to OctoPrint by Jacopo Tediosi.

CVE-2024-49377 Affected OctoPrint Versions

1 component(s)
Fixed Versions:
1.10.3
Product / Package Ecosystem Affected Versions Fixed Version
OctoPrint
pypi/OctoPrint
PyPI
< 1.10.3
1.10.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/OctoPrint/OctoPrint/security/advisories/GHSA-xvxq-g8hw-fx4g
NVD — CVE-2024-49377 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-49377
Security Fix Commit FIX COMMIT
https://github.com/OctoPrint/OctoPrint/commit/b8a6b0a75202edac3bb142a8e4f9041a0b6825bf
OctoPrint Source Repository REPOSITORY
https://github.com/OctoPrint/OctoPrint
OctoPrint Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/octoprint/PYSEC-2024-201.yaml

Frequently Asked Questions

What is CVE-2024-49377?
CVE-2024-49377 is a security vulnerability in OctoPrint involving OctoPrint Vulnerable to Reflected XSS in Jinja2 Templates under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which OctoPrint versions are affected?
Affected versions include releases prior to 1.10.3 across affected packages: OctoPrint.
What version fixes CVE-2024-49377?
Upgrading to 1.10.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is OctoPrint affected?
Yes, OctoPrint is affected in releases prior to 1.10.3. Upgrade your dependency to 1.10.3 or later.
What is the CVSS score of CVE-2024-49377?
CVE-2024-49377 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
What CWE is associated with CVE-2024-49377?
CVE-2024-49377 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check PyPI dependencies for CVE-2024-49377?
Run the dependency tree command: 'pip show OctoPrint'. 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
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xvxq-g8hw-fx4g",
  "modified" : "2025-01-21T17:56:22Z",
  "published" : "2024-11-05T15:05:55Z",
  "aliases" : [ "CVE-2024-49377" ],
  "summary" : "OctoPrint Vulnerable to Reflected XSS in Jinja2 Templates",
  "details" : "### Impact\n\nOctoPrint versions up until and including 1.10.2 are vulnerable to reflected XSS vulnerabilities through its Jinja2 template system, as this is not configured to enforce automatic escaping. This affects, among other places, the login dialog and the standalone application key confirmation dialog. \n\nAn attacker who successfully talked a victim into clicking on or through a malicious third party app successfully redirected a victim to a specially crafted link could use this to retrieve or modify sensitive configuration settings, interrupt prints or otherwise interact with the OctoPrint instance in a malicious way.\n\n### Patches\n\nThe above mentioned specific vulnerabilities of the login dialog and the standalone application key confirmation dialog will be patched in the bugfix release 1.10.3 by individual escaping of the detected locations. A global change throughout all of OctoPrint's templating system with the upcoming 1.11.0 release will handle this further, switching to globally enforced automatic escaping and thus reducing the attack surface in general.\n\nThe latter will also improve the security of third party plugins. During a transition period, third party plugins will be able to opt into the automatic escaping. With OctoPrint 1.13.0, automatic escaping will be switched over to be enforced even for third party plugins, unless they explicitly opt-out.\n\n### Credits\n\nThis vulnerability was discovered and responsibly disclosed to OctoPrint by Jacopo Tediosi.\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "OctoPrint"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.10.3"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.10.2"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/OctoPrint/OctoPrint/security/advisories/GHSA-xvxq-g8hw-fx4g"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-49377"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OctoPrint/OctoPrint/commit/b8a6b0a75202edac3bb142a8e4f9041a0b6825bf"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/OctoPrint/OctoPrint"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/octoprint/PYSEC-2024-201.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-11-05T15:05:55Z",
    "nvd_published_at" : "2024-11-05T19:15:05Z"
  }
}