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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2026.1.0-latest,2026.1.3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2026.2.0-latest,2026.2.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2026.3.0-latest,2026.3.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "discourse", "source": "cna", "vendor": "discourse"}, "product": "discourse", "vendor": "discourse"}], "analysis": {"en": {"generated_at": "2026-03-31T19:36:30.960438+00:00", "value": {"mitigation_remediation": ["Upgrade Discourse to at least version 2026.1.3, 2026.2.2, or 2026.3.0, depending on the current release", "Verify that the discourse\u2011subscriptions plugin is updated to a patched version", "Review subscription assignment logic to ensure only authorized users can elevate tiers", "Monitor user subscription activity for anomalous privilege changes"], "summary": {"action": "Immediate Patch", "impact": "Privilege Escalation via Unauthorized Subscription Elevation"}, "threat_synthesis": {"affected_systems": "The vulnerability affects Discourse installations using the discourse\u2011subscriptions plugin. Version ranges impacted are 2026.1.0 up to, but not including, 2026.1.3; 2026.2.0 up to, but not including, 2026.2.2; and 2026.3.0 up to, but not including, 2026.3.0. The fix was released in 2026.1.3, 2026.2.2, and 2026.3.0.", "description_and_impact": "A flaw in the discourse\u2011subscriptions plugin lets a user purchase a lower tier subscription yet assign themselves the benefits of a higher tier. The vulnerability falls under Improper Authorization (CWE\u2011269 and CWE\u2011285) and permits an attacker to gain additional features or access that the higher tier normally protects, potentially giving them unauthorized privilege or revenue\u2011based benefits.", "risk_and_exploitability": "The CVSS score of 6.3 indicates moderate severity. No EPSS data is available, and the issue is not listed in the CISA KEV catalog. The attack is likely executable by any authenticated user who can interact with the subscription interface, as the vulnerability involves self\u2011assignment of higher tier privileges. Therefore the risk is real, albeit moderate, and worth addressing promptly."}}}}, "created": "2026-03-31T19:53:38.204908+00:00", "updated": "2026-03-31T20:37:33.474023+00:00", "vendors": ["discourse", "discourse$PRODUCT$discourse"]}