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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*", "matchCriteriaId": "550C287A-18F0-462A-BFC9-2AD8A64B951A", "versionEndExcluding": "5.19.6", "vulnerable": true}, {"criteria": "cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*", "matchCriteriaId": "F7BDD719-DDF9-42A2-AD9D-05FB6D758EF1", "versionEndExcluding": "6.2.5", "versionStartIncluding": "6.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:apache:activemq_web:*:*:*:*:*:*:*:*", "matchCriteriaId": "6D85C151-239D-408F-833F-9DEB4341EC19", "versionEndExcluding": "5.19.6", "vulnerable": true}, {"criteria": "cpe:2.3:a:apache:activemq_web:*:*:*:*:*:*:*:*", "matchCriteriaId": "D0D5129B-51AC-4A0D-B4A4-17D84A9D89CE", "versionEndExcluding": "6.2.5", "versionStartIncluding": "6.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Apache ActiveMQ, Apache ActiveMQ Web.\n\nAn authenticated attacker can show malicious content when browsing queues in the web console by overriding the content type to be HTML (instead of XML) and by injecting HTML into a JMS selector field.\n\nThis issue affects Apache ActiveMQ: before 5.19.6, from 6.0.0 before 6.2.5; Apache ActiveMQ Web: before 5.19.6, from 6.0.0 before 6.2.5.\n\nUsers are recommended to upgrade to version 6.2.5 or 5.19.6, which fixes the issue."}], "id": "CVE-2026-41043", "lastModified": "2026-04-27T14:49:24.927", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.5, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2026-04-24T11:16:22.670", "references": [{"source": "security@apache.org", "tags": ["Vendor Advisory"], "url": "https://activemq.apache.org/security-advisories.data/CVE-2026-41043-announcement.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "http://www.openwall.com/lists/oss-security/2026/04/23/5"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-915"}], "source": "security@apache.org", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.19.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.0.0,6.2.5)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Apache ActiveMQ", "source": "cna", "vendor": "Apache Software Foundation"}, "product": "activemq", "vendor": "apache"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.19.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.0.0,6.2.5)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Apache ActiveMQ Web", "source": "cna", "vendor": "Apache Software Foundation"}, "product": "activemq_web", "vendor": "apache"}], "analysis": {"en": {"generated_at": "2026-04-28T20:23:20.852505+00:00", "value": {"mitigation_remediation": ["Upgrade Apache ActiveMQ and ActiveMQ Web to version 5.19.6 or 6.2.5 or later, which contains the fix for the XSS flaw.", "Restrict access to the ActiveMQ Web console to trusted administrators only, and enforce strong authentication and least privilege to limit the potential impact.", "Validate and sanitize the content of JMS selector fields to ensure no injected script tags are passed to the browser when displaying queue browsing pages."], "summary": {"action": "Patch", "impact": "Cross\u2011Site Scripting"}, "threat_synthesis": {"affected_systems": "The vulnerability is present in Apache ActiveMQ releases prior to version 5.19.6 and any 6.x releases before 6.2.5, and in Apache ActiveMQ Web with the same version ranges. Upgrades to version 5.19.6 or 6.2.5 and later eliminate the flaw.", "description_and_impact": "Apache ActiveMQ and ActiveMQ Web have a Basic XSS flaw (CWE-79) that allows an attacker who can authenticate to the administrative web console to inject malicious HTML into a JMS selector field. When the attacker forces the web console to deliver a queue browsing page as HTML instead of XML, the injected code is rendered and executed by the victim\u2019s browser. This can lead to session hijacking, credential theft, or other client\u2011side attacks.", "risk_and_exploitability": "The CVSS score of 6.5 indicates a moderate severity. The EPSS score is below 1 percent, suggesting that exploitation likelihood is low, and the vulnerability is not part of the CISA Known Exploited Vulnerabilities catalog. The attack path requires authentication to the web console; once authenticated, the attacker can exploit the flaw via a browser session that loads the manipulated queue page."}}}}, "created": "2026-04-27T19:30:11.874459+00:00", "updated": "2026-04-28T20:30:06.187024+00:00", "vendors": ["apache", "apache$PRODUCT$activemq", "apache$PRODUCT$activemq_web"]}