CVE-2026-72731
Discourse is an open-source discussion platform. From 2026.1.0-latest until 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0-latest.1, anyone able to run a parameterized Data Explorer query, including non-staff members of a group a query is shared with, could craft parameter values that escaped the intended query and executed arbitrary SQL through plugins/discourse-data-explorer/lib/discourse_data_explorer/data_explorer.rb and plugins/discourse-data-explorer/lib/discourse_data_explorer/workflows/sql_action/v1.rb.
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Recursive parameter interpolation allowed one parameter value to introduce another parameter, and parameter declarations in SQL comments could be used to inject a statement. Queries run in a read-only transaction, so data could not be modified, but any table could be read. This issue is fixed in versions 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0-latest.1.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
- Puntuación base: 7.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.40%
- Percentil entre todas las CVEs puntuadas: 32
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1210Exploitation of Remote Serviceslateral movement85 % - Impacto principal
T1005Data from Local Systemcollection90 % - Impacto secundario
T1565.001Stored Data Manipulationimpact25 %
SQL injection via parámetros en Data Explorer (CWE-89) con acceso remoto autenticado (PR:L). Impacto: lectura de datos en cualquier tabla (C:H) sin modificación por transacción read-only.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-89
Referencias
- https://github.com/discourse/discourse/commit/2bdab888cef561348470dee204a4879d83fbb5c3
- https://github.com/discourse/discourse/commit/3dc7f0da7aa18548281152e285244efb1cc8ad0d
- https://github.com/discourse/discourse/commit/674ba6fc64184fd7d8e21183c5d8cb22367faa6e
- https://github.com/discourse/discourse/commit/ce9ccf24ec3538172dc8f8199728e08f63e57693
- https://github.com/discourse/discourse/security/advisories/GHSA-wm63-83xp-59r5
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-72731",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-72731",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-08-10T16:55:46.023145Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.1,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 4.2,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "discourse",
"product": "discourse",
"versions": [
{
"status": "affected",
"version": "< 2026.1.7"
},
{
"status": "affected",
"version": ">= 2026.6.0-latest, < 2026.6.2"
},
{
"status": "affected",
"version": ">= 2026.7.0-latest, < 2026.7.1"
},
{
"status": "affected",
"version": ">= 2026.8.0-latest, < 2026.8.0-latest.1"
}
]
}
]
}
],
"published": "2026-08-10T17:17:37.663",
"references": [
{
"url": "https://github.com/discourse/discourse/commit/2bdab888cef561348470dee204a4879d83fbb5c3",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/discourse/discourse/commit/3dc7f0da7aa18548281152e285244efb1cc8ad0d",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/discourse/discourse/commit/674ba6fc64184fd7d8e21183c5d8cb22367faa6e",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/discourse/discourse/commit/ce9ccf24ec3538172dc8f8199728e08f63e57693",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/discourse/discourse/security/advisories/GHSA-wm63-83xp-59r5",
"source": "security-advisories@github.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Primary",
"source": "security-advisories@github.com",
"description": [
{
"lang": "en",
"value": "CWE-89"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Discourse is an open-source discussion platform. From 2026.1.0-latest until 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0-latest.1, anyone able to run a parameterized Data Explorer query, including non-staff members of a group a query is shared with, could craft parameter values that escaped the intended query and executed arbitrary SQL through plugins/discourse-data-explorer/lib/discourse_data_explorer/data_explorer.rb and plugins/discourse-data-explorer/lib/discourse_data_explorer/workflows/sql_action/v1.rb. Recursive parameter interpolation allowed one parameter value to introduce another parameter, and parameter declarations in SQL comments could be used to inject a statement. Queries run in a read-only transaction, so data could not be modified, but any table could be read. This issue is fixed in versions 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0-latest.1."
}
],
"lastModified": "2026-09-08T20:54:37.790",
"sourceIdentifier": "security-advisories@github.com"
}