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2 vulnerabilities found for discourse-doc-categories by discourse
CVE-2026-57447 (GCVE-0-2026-57447)
Vulnerability from nvd – Published: 2026-10-16 15:31 – Updated: 2026-10-16 17:06
VLAI
EPSS
VEX
Title
Discourse Doc Categories: Doc category index refresh leaks private topic titles
Summary
Discourse Doc Categories is a plugin for organizing Discourse topics as documentation. Prior to the verified source fix, the doc category index refresh resolves linked titles for private messages or restricted category topics without enforcing the viewer's authorization. A user who can edit the index topic can use this behavior to learn titles that the user is not authorized to view, although the advisory does not establish access to topic contents. This vulnerability is addressed by commit b15d4de02ad29d7c9525346afee51fef4a2c605a.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 16:32 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/discourse/discourse-doc-catego… | x_refsource_CONFIRM |
| https://github.com/discourse/discourse-doc-catego… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| discourse | discourse-doc-categories |
Affected:
< b15d4de02ad29d7c9525346afee51fef4a2c605a
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-57447",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-16T16:32:06.608343Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-16T17:06:24.293Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "discourse-doc-categories",
"vendor": "discourse",
"versions": [
{
"status": "affected",
"version": "\u003c b15d4de02ad29d7c9525346afee51fef4a2c605a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Discourse Doc Categories is a plugin for organizing Discourse topics as documentation. Prior to the verified source fix, the doc category index refresh resolves linked titles for private messages or restricted category topics without enforcing the viewer\u0027s authorization. A user who can edit the index topic can use this behavior to learn titles that the user is not authorized to view, although the advisory does not establish access to topic contents. This vulnerability is addressed by commit b15d4de02ad29d7c9525346afee51fef4a2c605a."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-16T15:31:10.493Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/discourse/discourse-doc-categories/security/advisories/GHSA-x63p-48vw-8r64",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/discourse/discourse-doc-categories/security/advisories/GHSA-x63p-48vw-8r64"
},
{
"name": "https://github.com/discourse/discourse-doc-categories/commit/b15d4de02ad29d7c9525346afee51fef4a2c605a",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/discourse/discourse-doc-categories/commit/b15d4de02ad29d7c9525346afee51fef4a2c605a"
}
],
"source": {
"advisory": "GHSA-x63p-48vw-8r64",
"discovery": "UNKNOWN"
},
"title": "Discourse Doc Categories: Doc category index refresh leaks private topic titles"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-57447",
"datePublished": "2026-10-16T15:31:10.493Z",
"dateReserved": "2026-06-24T13:21:20.730Z",
"dateUpdated": "2026-10-16T17:06:24.293Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-57447 (GCVE-0-2026-57447)
Vulnerability from cvelistv5 – Published: 2026-10-16 15:31 – Updated: 2026-10-16 17:06
VLAI
EPSS
VEX
Title
Discourse Doc Categories: Doc category index refresh leaks private topic titles
Summary
Discourse Doc Categories is a plugin for organizing Discourse topics as documentation. Prior to the verified source fix, the doc category index refresh resolves linked titles for private messages or restricted category topics without enforcing the viewer's authorization. A user who can edit the index topic can use this behavior to learn titles that the user is not authorized to view, although the advisory does not establish access to topic contents. This vulnerability is addressed by commit b15d4de02ad29d7c9525346afee51fef4a2c605a.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 16:32 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/discourse/discourse-doc-catego… | x_refsource_CONFIRM |
| https://github.com/discourse/discourse-doc-catego… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| discourse | discourse-doc-categories |
Affected:
< b15d4de02ad29d7c9525346afee51fef4a2c605a
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-57447",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-16T16:32:06.608343Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-16T17:06:24.293Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "discourse-doc-categories",
"vendor": "discourse",
"versions": [
{
"status": "affected",
"version": "\u003c b15d4de02ad29d7c9525346afee51fef4a2c605a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Discourse Doc Categories is a plugin for organizing Discourse topics as documentation. Prior to the verified source fix, the doc category index refresh resolves linked titles for private messages or restricted category topics without enforcing the viewer\u0027s authorization. A user who can edit the index topic can use this behavior to learn titles that the user is not authorized to view, although the advisory does not establish access to topic contents. This vulnerability is addressed by commit b15d4de02ad29d7c9525346afee51fef4a2c605a."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-16T15:31:10.493Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/discourse/discourse-doc-categories/security/advisories/GHSA-x63p-48vw-8r64",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/discourse/discourse-doc-categories/security/advisories/GHSA-x63p-48vw-8r64"
},
{
"name": "https://github.com/discourse/discourse-doc-categories/commit/b15d4de02ad29d7c9525346afee51fef4a2c605a",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/discourse/discourse-doc-categories/commit/b15d4de02ad29d7c9525346afee51fef4a2c605a"
}
],
"source": {
"advisory": "GHSA-x63p-48vw-8r64",
"discovery": "UNKNOWN"
},
"title": "Discourse Doc Categories: Doc category index refresh leaks private topic titles"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-57447",
"datePublished": "2026-10-16T15:31:10.493Z",
"dateReserved": "2026-06-24T13:21:20.730Z",
"dateUpdated": "2026-10-16T17:06:24.293Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}