CVE-2024-27926: Rsshub Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-2wqw-hr4f-xrhh
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2024-27926 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Rsshub libraries in the npm ecosystem. The issue involves rsshub cross-site scripting vulnerability caused by internal media proxy. Remediation is available by upgrading affected packages to version 1.0.0-master.d8ca915.

CVE-2024-27926 at a Glance

CVE Identifier CVE-2024-27926
GHSA Identifier GHSA-2wqw-hr4f-xrhh
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Rsshub
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 6.1

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:C/C:L/I:L/A:N).

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

How to Fix CVE-2024-27926

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

rsshub fixed: 1.0.0-master.d8ca915 
npm install rsshub@1.0.0-master.d8ca915
Verify Direct and Transitive Dependencies

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

npm ls rsshub

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2024-27926, inspect your project dependencies using npm:

npm ls rsshub

Analyze the terminal output to locate any version of Rsshub in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.0-master.d8ca915), your application is affected.

Note: The npm ls rsshub command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

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 Rsshub, 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 When the specially crafted image is supplied to the internal media proxy, it proxies the image without handling XSS vulnerabilities, allowing for the execution of arbitrary JavaScript code. Users who access the deliberately constructed URL are affected. ## Patches This vulnerability was fixed in version https://github.com/DIYgod/RSSHub/commit/4d3e5d79c1c17837e931b4cd253d2013b487aa87. Please upgrade to this or a later version. ## Workarounds No.

CVE-2024-27926 Affected Rsshub Versions

1 component(s)
Fixed Versions:
1.0.0-master.d8ca915
Product / Package Ecosystem Affected Versions Fixed Version
rsshub
npm/rsshub
npm
≥ 1.0.0-master.cbbd829
< 1.0.0-master.d8ca915
1.0.0-master.d8ca915

References

GitHub Advisory / Wiki ADVISORY
https://github.com/DIYgod/RSSHub/security/advisories/GHSA-2wqw-hr4f-xrhh
NVD — CVE-2024-27926 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-27926
Security Fix Commit FIX COMMIT
https://github.com/DIYgod/RSSHub/commit/4d3e5d79c1c17837e931b4cd253d2013b487aa87
Rsshub Source Repository REPOSITORY
https://github.com/DIYgod/RSSHub

Frequently Asked Questions

What is CVE-2024-27926?
CVE-2024-27926 is a security vulnerability in Rsshub involving RSSHub Cross-site Scripting vulnerability caused by internal media proxy under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Rsshub versions are affected?
Affected versions include releases prior to 1.0.0-master.d8ca915 across affected packages: rsshub.
What version fixes CVE-2024-27926?
Upgrading to 1.0.0-master.d8ca915 (or the latest patched release for your respective branch) resolves the vulnerability.
Is rsshub affected?
Yes, rsshub is affected in releases prior to 1.0.0-master.d8ca915. Upgrade your dependency to 1.0.0-master.d8ca915 or later.
What is the CVSS score of CVE-2024-27926?
CVE-2024-27926 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2024-27926?
CVE-2024-27926 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 npm dependencies for CVE-2024-27926?
Run the dependency tree command: 'npm ls rsshub'. 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-2wqw-hr4f-xrhh",
  "modified" : "2024-03-21T18:25:32Z",
  "published" : "2024-03-06T17:02:34Z",
  "aliases" : [ "CVE-2024-27926" ],
  "summary" : "RSSHub Cross-site Scripting vulnerability caused by internal media proxy",
  "details" : "## Impact\nWhen the specially crafted image is supplied to the internal media proxy, it proxies the image without handling XSS vulnerabilities, allowing for the execution of arbitrary JavaScript code.\n\nUsers who access the deliberately constructed URL are affected.\n\n## Patches\n\nThis vulnerability was fixed in version https://github.com/DIYgod/RSSHub/commit/4d3e5d79c1c17837e931b4cd253d2013b487aa87. Please upgrade to this or a later version.\n\n## Workarounds\n\nNo.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "rsshub"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.0.0-master.cbbd829"
      }, {
        "fixed" : "1.0.0-master.d8ca915"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/DIYgod/RSSHub/security/advisories/GHSA-2wqw-hr4f-xrhh"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-27926"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/DIYgod/RSSHub/commit/4d3e5d79c1c17837e931b4cd253d2013b487aa87"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/DIYgod/RSSHub"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-03-06T17:02:34Z",
    "nvd_published_at" : "2024-03-21T02:52:21Z"
  }
}