Unrated
Security advisory
BigBlueButton version 2.4.7 (or earlier) is vulnerable to stored Cross-Site Scripting (XSS) in the private chat functionality. A threat actor could inject JavaScript payload in his/her username. The payload gets executed in the browser of the victim each time the attacker sends a private message to the victim or when notification about the attacker leaving room is displayed.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2022-27238
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 5 Nov 2026, 01:52 UTC · Revision 1
Source evidence
BigBlueButton version 2.4.7 (or earlier) is vulnerable to stored Cross-Site Scripting (XSS) in the private chat functionality. A threat actor could inject JavaScript payload in his/her username. The payload gets executed in the browser of the victim each time the attacker sends a private message to the victim or when notification about the attacker leaving room is displayed.
osv:CVE-2022-27238
Complete source record
{
"id": "f73a3c1e17f737ce7aa68aff4331620d4d369148f2d46569a8ea38c7363d745b",
"url": "https://osv.dev/vulnerability/CVE-2022-27238",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2022-27238",
"summary": "BigBlueButton version 2.4.7 (or earlier) is vulnerable to stored Cross-Site Scripting (XSS) in the private chat functionality. A threat actor could inject JavaScript payload in his/her username. The payload gets executed in the browser of the victim each time the attacker sends a private message to the victim or when notification about the attacker leaving room is displayed.",
"evidence": "osv:CVE-2022-27238",
"products": [],
"severity": "unknown",
"structured": {
"id": "CVE-2022-27238",
"aliases": [
"CVE-2022-27238"
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/bigbluebutton/bigbluebutton",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "eda21682ea3fd472c8d16fe7ec6bcf0f80370a6f"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "2.4.7"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v2.4.7",
"v2.4.6",
"v2.4.5",
"v2.4.3",
"v2.4.4",
"v2.4.2",
"v2.4.1",
"v2.4.0",
"v2.4-rc-7",
"v2.4-rc-6",
"v2.4-rc-5",
"v2.4-rc-4",
"v2.4-rc-3",
"2.4-rc-2",
"v2.4-rc-1",
"v2.4-beta-4",
"v2.4-beta-3",
"v2.4-beta-2",
"v2.4-beta-1",
"v2.4-alpha-1",
"v2.3.1",
"v2.3.0",
"v2.3-rc-2",
"v2.3-rc-1",
"v2.3-beta-5",
"v2.3-beta-4",
"v2.3-beta-3",
"v2.3-beta-2",
"v2.3-beta-1",
"v2.3-alpha-8",
"v2.3-alpha-7",
"v2.3-alpha-6",
"v2.3-alpha-5",
"v2.3-alpha-4",
"v2.3-alpha-3",
"v2.3-alpha-2",
"v2.3-alpha-1",
"2.2-rc-3",
"2.2-rc-2",
"2.2-rc-1",
"2.2-beta-23",
"2.2-beta-22",
"2.2-beta-21",
"2.2-beta-20",
"2.2-beta-19",
"2.2-beta-18",
"2.2-beta-17",
"2.2-beta-16",
"2.2-beta-15",
"2.2-beta-14",
"2.2-beta-12",
"2.2-beta-11",
"2.2-beta-10",
"2.2-beta-9",
"2.2-beta-8",
"2.2-beta-7",
"2.2-beta-6",
"2.2-beta-5",
"2.2-beta-4",
"2.2-beta-3",
"2.2-beta-2",
"dcs-2-a",
"v0.9.0-beta",
"v0.8",
"v0.8rc2",
"v0.8b4.0",
"v0.8b4"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-27238.json"
}
}
],
"modified": "2026-10-28T02:30:41.559326852Z",
"provider": "osv",
"references": [
"https://www.mgm-sp.com/en/cve-2022-27238-bigbluebutton-xss/",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/27xxx/CVE-2022-27238.json",
"https://nvd.nist.gov/vuln/detail/CVE-2022-27238"
],
"provider_metadata": {
"cna_assigner": "mitre",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/27xxx/CVE-2022-27238.json"
}
},
"related_cves": [
{
"value": "CVE-2022-27238",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 509237,
"published_at": "2022-06-24T15:15:22+00:00"
}