Threats Tagged 'cve-2026-17033'
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Threats Tagged 'cve-2026-17033'
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An authenticated attacker with Editor access or alert.instances.external:write can submit an external Alertmanager alert containing a controlled… (CVE-2026-17033)CVE-2026-17033 0 CVE-2026-17033 is a vulnerability in Grafana where an authenticated attacker with Editor access or alert.instances.external:write permission can submit an external Alertmanager alert containing a crafted generatorURL. This URL is rendered without proper URL-scheme sanitization or a safe-protocol allowlist, allowing bypass of click interception heuristics. When a user with read access clicks the 'See source' link, attacker-controlled JavaScript executes in the Grafana origin with the user's permissions, leading to cross-site scripting (XSS). Join the discussion | GCVE Database | 08/24/2026, 15:31:51 UTC Added: 08/24/2026, 16:40:44 UTC |
CVE-2026-17033: CWE-79: IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION ('CROSS-SITE SCRIPTING') in Grafana Grafana OSSCVE-2026-17033 0 An authenticated attacker with Editor access or alert.instances.external:write can submit an external Alertmanager alert containing a controlled generatorURL. The attacker is authorized to create the alert, but not to execute script in another user's Grafana session. Grafana renders alert.generatorURL directly as the Alert Details See source LinkButton href without URL-scheme sanitization or a safe-protocol allowlist. The click interceptor's :// heuristic can be bypassed by placing :// inside a JavaScript comment. When a user with read access clicks See source, the browser executes attacker-controlled JavaScript in the Grafana origin with the clicking user's permissions. Join the discussion | CVE Database V5 | 08/24/2026, 13:52:26 UTC Added: 08/24/2026, 14:08:11 UTC |
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