{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-16T21:18:50.503","vulnerabilities":[{"cve":{"id":"CVE-2020-26280","sourceIdentifier":"security-advisories@github.com","published":"2020-12-18T19:15:14.343","lastModified":"2024-11-21T05:19:44.710","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"OpenSlides is a free, Web-based presentation and assembly system for managing and projecting agenda, motions, and elections of assemblies. OpenSlides version 3.2, due to unsufficient user input validation and escaping, it is vulnerable to persistant cross-site scripting (XSS). In the web applications users can enter rich text in various places, e.g. for personal notes or in motions. These fields can be used to store arbitrary JavaScript Code that will be executed when other users read the respective text. An attacker could utilize this vulnerability be used to manipulate votes of other users, hijack the moderators session or simply disturb the meeting. The vulnerability was introduced with 6eae497abeab234418dfbd9d299e831eff86ed45 on 16.04.2020, which is first included in the 3.2 release. It has been patched in version 3.3 ( in commit f3809fc8a97ee305d721662a75f788f9e9d21938, merged in master on 20.11.2020)."},{"lang":"es","value":"OpenSlides es un sistema de presentación y ensamblaje gratuito basado en la web para administrar y proyectar agenda, movimientos y elecciones de las reuniones. OpenSlides versión 3.2, debido a una comprobación insuficiente de la entrada de usuario y al escape, es vulnerable a un ataque de tipo cross-site scripting (XSS) persistente. En las aplicaciones web, los usuarios pueden ingresar texto enriquecido en varios lugares, por ejemplo, para notas personales o en movimientos. Estos campos pueden ser utilizados para almacenar código JavaScript arbitrario que será ejecutado cuando otros usuarios lean el texto respectivo. Un atacante podría usar esta vulnerabilidad para manipular los votos de otros usuarios, secuestrar la sesión de los moderadores o simplemente perturbar la reunión. La vulnerabilidad fue introducida con 6eae497abeab234418dfbd9d299e831eff86ed45 en 16.04.2020, el cual es incluida por primera vez en la versión 3.2. Ha sido parcheado en la versión 3.3 (en el commit f3809fc8a97ee305d721662a75f788f9e9d21938, fusionada en master en 20.11.2020)"}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L","baseScore":8.9,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"LOW"},"exploitabilityScore":2.3,"impactScore":6.0},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L","baseScore":8.9,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"LOW"},"exploitabilityScore":2.3,"impactScore":6.0}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:S/C:N/I:P/A:N","baseScore":3.5,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"LOW","exploitabilityScore":6.8,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-79"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-79"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:openslides:openslides:3.2:*:*:*:*:*:*:*","matchCriteriaId":"ADA066D9-25CC-46AA-AADC-C717C76CE5EA"}]}]}],"references":[{"url":"https://github.com/OpenSlides/OpenSlides/blob/master/CHANGELOG.rst#version-33-2020-12-18","source":"security-advisories@github.com","tags":["Release Notes","Third Party Advisory"]},{"url":"https://github.com/OpenSlides/OpenSlides/commit/f3809fc8a97ee305d721662a75f788f9e9d21938","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/OpenSlides/OpenSlides/pull/5714","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/OpenSlides/OpenSlides/security/advisories/GHSA-w5wr-98qm-jx92","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-043.txt","source":"security-advisories@github.com","tags":["Broken Link"]},{"url":"https://github.com/OpenSlides/OpenSlides/blob/master/CHANGELOG.rst#version-33-2020-12-18","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Release Notes","Third Party Advisory"]},{"url":"https://github.com/OpenSlides/OpenSlides/commit/f3809fc8a97ee305d721662a75f788f9e9d21938","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/OpenSlides/OpenSlides/pull/5714","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/OpenSlides/OpenSlides/security/advisories/GHSA-w5wr-98qm-jx92","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-043.txt","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Broken Link"]}]}}]}