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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": "2026-04-10T03:51:41.850484+00:00", "value": {"mitigation_remediation": ["Upgrade Discourse to version 2026.1.3 or newer, which includes the patch for the subscriptions plugin.", "Ensure the discourse\u2011subscriptions plugin is updated to the latest stable release that contains the fix.", "Verify that the multisite configuration does not expose Stripe API keys between sites.", "If a patch is temporarily unavailable, consider disabling Stripe integration or restricting plugin access to trusted users.", "Monitor Stripe logs for abnormal activity to detect potential abuse of leaked keys."], "summary": {"action": "Patch", "impact": "Information Disclosure"}, "threat_synthesis": {"affected_systems": "Discourse, the open\u2011source discussion platform, is affected when running versions 2026.1.0\u20112026.1.3 (exclusive), 2026.2.0\u20112026.2.2 (exclusive), or 2026.3.0\u20112026.3.0 (exclusive) in a multisite deployment. All installations that include the discourse\u2011subscriptions plugin are vulnerable.", "description_and_impact": "The discourse\u2011subscriptions plugin can leak Stripe API keys across sites in a multisite cluster, exposing sensitive payment credentials to sites within the same cluster. The exposed keys represent a confidentiality breach but do not provide an execution or denial\u2011of\u2011service vector. This weakness is a classic information\u2011disclosure flaw.", "risk_and_exploitability": "With a CVSS score of 2 and an EPSS probability of less than 1\u202f%, the likelihood of exploitation is low. The vulnerability is not listed in the CISA KEV catalog. The attack vector is inferred to be within the same multisite cluster; an attacker would need access to one site in the cluster to capture the leaked key. The impact is limited to unauthorized exposure of Stripe API keys, posing a confidentiality risk to all sites in the cluster."}}}}, "created": "2026-03-31T20:11:51.599530+00:00", "updated": "2026-04-10T09:46:13.581999+00:00", "vendors": ["discourse", "discourse$PRODUCT$discourse"]}