CVE-2026-27645

{"id": "CVE-2026-27645", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}]}, "published": "2026-02-25T05:17:26.317", "references": [{"url": "https://github.com/dgtlmoon/changedetection.io/commit/a385c89abf44b52fcfa20c7c6a6dd3047c4c1eb5", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-mw8m-398g-h89w", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-mw8m-398g-h89w", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "changedetection.io is a free open source web page change detection tool. In versions prior to 0.54.1, the RSS single-watch endpoint reflects the UUID path parameter directly in the HTTP response body without HTML escaping. Since Flask returns text/html by default for plain string responses, the browser parses and executes injected JavaScript. Version 0.54.1 contains a fix for the issue."}, {"lang": "es", "value": "changedetection.io es una herramienta gratuita de c\u00f3digo abierto para la detecci\u00f3n de cambios en p\u00e1ginas web. En versiones anteriores a la 0.54.1, el endpoint RSS de monitoreo \u00fanico refleja el par\u00e1metro de ruta UUID directamente en el cuerpo de la respuesta HTTP sin escape HTML. Dado que Flask devuelve text/html por defecto para respuestas de cadena de texto plano, el navegador analiza y ejecuta JavaScript inyectado. La versi\u00f3n 0.54.1 contiene una correcci\u00f3n para el problema."}], "lastModified": "2026-02-25T16:51:33.417", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:webtechnologies:changedetection:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "582BB3C2-9FD0-4217-A5DF-67ACC72BA029", "versionEndExcluding": "0.54.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}