GHSA-C9VX-2G7W-RP65
Vulnerability from github – Published: 2023-07-18 16:58 – Updated: 2023-07-19 20:04Description
The Export Chat feature includes certain attacker-controlled elements in the generated document without sufficient escaping, leading to stored XSS.
Impact
Since the Export Chat feature generates a separate document, an attacker can only inject code run from the null origin, restricting the impact.
However, the attacker can still potentially use the XSS to leak message contents. A malicious homeserver is a potential attacker since the affected inputs are controllable server-side.
Patches
This was patched in matrix-react-sdk 3.76.0.
Workarounds
None, other than not using the Export Chat feature.
References
N/A
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "matrix-react-sdk"
},
"ranges": [
{
"events": [
{
"introduced": "3.32.0"
},
{
"fixed": "3.76.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-37259"
],
"database_specific": {
"cwe_ids": [
"CWE-79",
"CWE-80"
],
"github_reviewed": true,
"github_reviewed_at": "2023-07-18T16:58:01Z",
"nvd_published_at": "2023-07-18T17:15:11Z",
"severity": "MODERATE"
},
"details": "### Description\n\nThe Export Chat feature includes certain attacker-controlled elements in the generated document without sufficient escaping, leading to stored XSS.\n\n### Impact\n\nSince the Export Chat feature generates a separate document, an attacker can only inject code run from the `null` origin, restricting the impact.\n\nHowever, the attacker can still potentially use the XSS to leak message contents. A malicious homeserver is a potential attacker since the affected inputs are controllable server-side.\n\n### Patches\nThis was patched in matrix-react-sdk 3.76.0.\n\n### Workarounds\nNone, other than not using the Export Chat feature.\n\n### References\nN/A\n",
"id": "GHSA-c9vx-2g7w-rp65",
"modified": "2023-07-19T20:04:38Z",
"published": "2023-07-18T16:58:01Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-c9vx-2g7w-rp65"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-37259"
},
{
"type": "WEB",
"url": "https://github.com/matrix-org/matrix-react-sdk/commit/22fcd34c606f32129ebc967fc21f24fb708a98b8"
},
{
"type": "PACKAGE",
"url": "https://github.com/matrix-org/matrix-react-sdk"
},
{
"type": "WEB",
"url": "https://github.com/matrix-org/matrix-react-sdk/releases/tag/v3.76.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "matrix-react-sdk vulnerable to XSS in Export Chat feature"
}
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