GHSA-WQV2-4WPG-8HC9
Vulnerability from github – Published: 2025-12-10 17:18 – Updated: 2026-02-02 16:29
VLAI
Summary
Miniflux has an Open Redirect via protocol-relative redirect_url
Details
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.comto current-origin scheme (e.g.https://ikotaslabs.com), enabling phishing flows after login.
PoC
- Send or visit:
http://localhost/login?redirect_url=//ikotaslabs.com - Complete normal login flow.
- After login the app redirects to
https://ikotaslabs.com(orhttp://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.
Severity
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 2.2.14"
},
"package": {
"ecosystem": "Go",
"name": "miniflux.app/v2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.15"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-67713"
],
"database_specific": {
"cwe_ids": [
"CWE-601"
],
"github_reviewed": true,
"github_reviewed_at": "2025-12-10T17:18:37Z",
"nvd_published_at": "2025-12-11T01:16:00Z",
"severity": "MODERATE"
},
"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\")` =\u003e 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 (\u672a\u8e0f\u30a2\u30c9\u30d0\u30f3\u30b9\u30c8\u4e8b\u696d)**, implemented by the **Information-technology Promotion Agency (IPA), Japan**.",
"id": "GHSA-wqv2-4wpg-8hc9",
"modified": "2026-02-02T16:29:11Z",
"published": "2025-12-10T17:18:37Z",
"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"
}
],
"schema_version": "1.4.0",
"severity": [
{
"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",
"type": "CVSS_V4"
}
],
"summary": "Miniflux has an Open Redirect via protocol-relative redirect_url"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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