CVE-2025-67713: Miniflux.app/v2 Miniflux Has An Open Redirect Vulnerability

MODERATE
Advisory Identifier: GHSA-wqv2-4wpg-8hc9
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CWE-601
Published
Advisory Summary

CVE-2025-67713 is a MODERATE miniflux has an open redirect vulnerability (CWE-601: URL Redirection to Untrusted Site ('Open Redirect')) affecting Miniflux.app/v2 libraries in the Go ecosystem. The issue involves miniflux has an open redirect via protocol-relative redirect_url. Remediation is available by upgrading affected packages to version 2.2.15.

CVE-2025-67713 at a Glance

CVE Identifier CVE-2025-67713
GHSA Identifier GHSA-wqv2-4wpg-8hc9
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Affected Product Miniflux.app/v2
Package Ecosystem Go
Published Date
Last Updated

How to Fix CVE-2025-67713

To remediate this vulnerability, upgrade all affected Miniflux.app/v2 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

miniflux.app/v2 fixed: 2.2.15 
Upgrade miniflux.app/v2 to 2.2.15
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 miniflux.app/v2

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-67713, inspect your project dependencies for Miniflux.app/v2:

inspect dependencies for miniflux.app/v2

Analyze the terminal output to locate any version of Miniflux.app/v2 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.2.15), 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-601: URL Redirection to Untrusted Site ('Open Redirect'), where the web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect. In Miniflux.app/v2, 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

### Summary `redirect_url` is treated as safe when `url.Parse(...).IsAbs()` is false. Protocol-relative URLs like `//ikotaslabs.com` have an empty scheme and pass that check, allowing post-login redirects to attacker-controlled sites. ### Details - `url.Parse("//ikotaslabs.com")` => empty Scheme, Host="ikotaslabs.com". - `IsAbs()` returns false for `//ikotaslabs.com`, so the code treats it as allowed. - Browser resolves `//ikotaslabs.com` to current-origin scheme (e.g. `https://ikotaslabs.com`), enabling phishing flows after login. ### PoC 1. Send or visit: `http://localhost/login?redirect_url=//ikotaslabs.com` 2. Complete normal login flow. 3. After login the app redirects to `https://ikotaslabs.com` (or `http://` depending on origin). ### Acknowledgements This vulnerability was discovered using the automated vulnerability analysis tools **VulScribe** and **PwnML**. The research and tool development were conducted with support from the **MITOU Advanced Program (未踏アドバンスト事業)**, implemented by the **Information-technology Promotion Agency (IPA), Japan**.

CVE-2025-67713 Affected Miniflux.app/v2 Versions

1 component(s)
Fixed Versions:
2.2.15
Product / Package Ecosystem Affected Versions Fixed Version
miniflux.app/v2
golang/miniflux.app/v2
Go
< 2.2.15
2.2.15

References

GitHub Advisory / Wiki ADVISORY
https://github.com/miniflux/v2/security/advisories/GHSA-wqv2-4wpg-8hc9
NVD — CVE-2025-67713 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-67713
Security Fix Commit FIX COMMIT
https://github.com/miniflux/v2/commit/76df99f3a3db234cf6b312be5e771485213d03c7
Miniflux.app/v2 Source Repository REPOSITORY
https://github.com/miniflux/v2

Frequently Asked Questions

What is CVE-2025-67713?
CVE-2025-67713 is a security vulnerability in Miniflux.app/v2 involving Miniflux has an Open Redirect via protocol-relative redirect_url under CWE-601: URL Redirection to Untrusted Site ('Open Redirect').
Which Miniflux.app/v2 versions are affected?
Affected versions include releases prior to 2.2.15 across affected packages: miniflux.app/v2.
What version fixes CVE-2025-67713?
Upgrading to 2.2.15 (or the latest patched release for your respective branch) resolves the vulnerability.
Is miniflux.app/v2 affected?
Yes, miniflux.app/v2 is affected in releases prior to 2.2.15. Upgrade your dependency to 2.2.15 or later.
What CWE is associated with CVE-2025-67713?
CVE-2025-67713 is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect') (The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.).
How can I check Go dependencies for CVE-2025-67713?
Run the dependency tree command: 'inspect dependencies for miniflux.app/v2'. 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-wqv2-4wpg-8hc9",
  "modified" : "2026-02-02T16:29:11Z",
  "published" : "2025-12-10T17:18:37Z",
  "aliases" : [ "CVE-2025-67713" ],
  "summary" : "Miniflux has an Open Redirect via protocol-relative redirect_url",
  "details" : "### Summary\n`redirect_url` is treated as safe when `url.Parse(...).IsAbs()` is false. Protocol-relative URLs like `//ikotaslabs.com` have an empty scheme and pass that check, allowing post-login redirects to attacker-controlled sites.\n\n### Details\n- `url.Parse(\"//ikotaslabs.com\")` => empty Scheme, Host=\"ikotaslabs.com\".\n- `IsAbs()` returns false for `//ikotaslabs.com`, so the code treats it as allowed.\n- Browser resolves `//ikotaslabs.com` to current-origin scheme (e.g. `https://ikotaslabs.com`), enabling phishing flows after login.\n\n### PoC\n1. Send or visit: `http://localhost/login?redirect_url=//ikotaslabs.com`  \n2. Complete normal login flow.  \n3. After login the app redirects to `https://ikotaslabs.com` (or `http://` depending on origin).\n\n### Acknowledgements  \nThis vulnerability was discovered using the automated vulnerability analysis tools **VulScribe** and **PwnML**.   The research and tool development were conducted  with support from the **MITOU Advanced Program (未踏アドバンスト事業)**, implemented by the **Information-technology Promotion Agency (IPA), Japan**.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "miniflux.app/v2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.2.15"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2.2.14"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/miniflux/v2/security/advisories/GHSA-wqv2-4wpg-8hc9"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-67713"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/miniflux/v2/commit/76df99f3a3db234cf6b312be5e771485213d03c7"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/miniflux/v2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-601" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-12-10T17:18:37Z",
    "nvd_published_at" : "2025-12-11T01:16:00Z"
  }
}