GHSA-3W6J-GJ2M-VH4C
Vulnerability from github – Published: 2022-05-24 17:45 – Updated: 2022-05-24 17:45
VLAI?
Details
A malicious extension with the 'search' permission could have installed a new search engine whose favicon referenced a cross-origin URL. The response to this cross-origin request could have been read by the extension, allowing a same-origin policy bypass by the extension, which should not have cross-origin permissions. This cross-origin request was made without cookies, so the sensitive information disclosed by the violation was limited to local-network resources or resources that perform IP-based authentication. This vulnerability affects Firefox < 87.
{
"affected": [],
"aliases": [
"CVE-2021-23986"
],
"database_specific": {
"cwe_ids": [
"CWE-346"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-03-31T14:15:00Z",
"severity": "MODERATE"
},
"details": "A malicious extension with the \u0027search\u0027 permission could have installed a new search engine whose favicon referenced a cross-origin URL. The response to this cross-origin request could have been read by the extension, allowing a same-origin policy bypass by the extension, which should not have cross-origin permissions. This cross-origin request was made without cookies, so the sensitive information disclosed by the violation was limited to local-network resources or resources that perform IP-based authentication. This vulnerability affects Firefox \u003c 87.",
"id": "GHSA-3w6j-gj2m-vh4c",
"modified": "2022-05-24T17:45:59Z",
"published": "2022-05-24T17:45:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23986"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1692623"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202104-10"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2021-10"
}
],
"schema_version": "1.4.0",
"severity": []
}
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Sightings
| Author | Source | Type | Date |
|---|
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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