GHSA-J2R8-2VXG-PXVH
Vulnerability from github – Published: 2022-05-24 22:00 – Updated: 2022-05-24 22:00Zulip server before 2.0.5 incompletely validated the MIME types of uploaded files. A user who is logged into the server could upload files of certain types to mount a stored cross-site scripting attack on other logged-in users. On a Zulip server using the default local uploads backend, the attack is only effective against browsers lacking support for Content-Security-Policy such as Internet Explorer 11. On a Zulip server using the S3 uploads backend, the attack is confined to the origin of the configured S3 uploads hostname and cannot reach the Zulip server itself.
{
"affected": [],
"aliases": [
"CVE-2019-16216"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-18T12:15:00Z",
"severity": "LOW"
},
"details": "Zulip server before 2.0.5 incompletely validated the MIME types of uploaded files. A user who is logged into the server could upload files of certain types to mount a stored cross-site scripting attack on other logged-in users. On a Zulip server using the default local uploads backend, the attack is only effective against browsers lacking support for Content-Security-Policy such as Internet Explorer 11. On a Zulip server using the S3 uploads backend, the attack is confined to the origin of the configured S3 uploads hostname and cannot reach the Zulip server itself.",
"id": "GHSA-j2r8-2vxg-pxvh",
"modified": "2022-05-24T22:00:37Z",
"published": "2022-05-24T22:00:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-16216"
},
{
"type": "WEB",
"url": "https://github.com/zulip/zulip/commit/1195841dfb9aa26b3b0dabc6f05d72e4af25be3e"
},
{
"type": "WEB",
"url": "https://blog.zulip.org/2019/09/11/zulip-server-2-0-5-security-release"
}
],
"schema_version": "1.4.0",
"severity": []
}
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