Medium
Security advisory
Discourse is an open source discussion platform. In versions prior to 2.7.7 there are two bugs which led to the post creator of a whisper post being revealed to non-staff users. 1: Staff users that creates a whisper post in a personal message is revealed to non-staff participants of the personal message even though the whisper post cannot be seen by them. 2: When a whisper post is before the last post in a post stream, deleting the last post will result in the creator of the whisper post to be revealed to non-staff users as the last poster of the topic.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-32788
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:17 UTC · Revision 1
Source evidence
Discourse is an open source discussion platform. In versions prior to 2.7.7 there are two bugs which led to the post creator of a whisper post being revealed to non-staff users. 1: Staff users that creates a whisper post in a personal message is revealed to non-staff participants of the personal message even though the whisper post cannot be seen by them. 2: When a whisper post is before the last post in a post stream, deleting the last post will result in the creator of the whisper post to be revealed to non-staff users as the last poster of the topic.
osv:CVE-2021-32788
Complete source record
{
"id": "f31dbd1dcbc0043672092c5be67304294cd0d07fdbb854dfd61a0d1228eafdb6",
"url": "https://osv.dev/vulnerability/CVE-2021-32788",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-32788",
"summary": "Discourse is an open source discussion platform. In versions prior to 2.7.7 there are two bugs which led to the post creator of a whisper post being revealed to non-staff users. 1: Staff users that creates a whisper post in a personal message is revealed to non-staff participants of the personal message even though the whisper post cannot be seen by them. 2: When a whisper post is before the last post in a post stream, deleting the last post will result in the creator of the whisper post to be revealed to non-staff users as the last poster of the topic.",
"evidence": "osv:CVE-2021-32788",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-32788",
"aliases": [
"BIT-discourse-2021-32788",
"CVE-2021-32788",
"GHSA-v6xg-q577-vc92"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/discourse/discourse",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "b47c5f69d859866c1b42cd316f11dae4270b118f"
},
{
"fixed": "680024f9071b7696e5a444a58791016c6dc1f1e5"
},
{
"fixed": "dbdf61196d9e964e8823793d2e7f856595fea4d9"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.7.7"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "680024f9071b7696e5a444a58791016c6dc1f1e5"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "dbdf61196d9e964e8823793d2e7f856595fea4d9"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32788.json"
}
}
],
"modified": "2026-10-20T10:53:45.666855266Z",
"provider": "osv",
"references": [
"https://github.com/discourse/discourse/security/advisories/GHSA-v6xg-q577-vc92",
"https://github.com/discourse/discourse/commit/680024f9071b7696e5a444a58791016c6dc1f1e5",
"https://github.com/discourse/discourse/commit/dbdf61196d9e964e8823793d2e7f856595fea4d9"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2021-32788",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 384590,
"published_at": "2021-07-27T22:15:07.597+00:00"
}