{"id":17127,"date":"2025-09-11T11:48:06","date_gmt":"2025-09-11T11:48:06","guid":{"rendered":"http:\/\/localhost\/?p=17127"},"modified":"2025-09-11T11:48:06","modified_gmt":"2025-09-11T11:48:06","slug":"ascensio-system-sia-onlyoffice-comment-messagesaspx-cross-site-scripting","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=17127","title":{"rendered":"Ascensio System SIA OnlyOffice Comment Messages.aspx cross site scripting_CVE-2025-10255"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A vulnerability was determined in Ascensio System SIA OnlyOffice up to 12.7.0. Impacted is an unknown function of the file \/Products\/Projects\/Messages.aspx of the component Comment Handler. Executing manipulation can lead to cross site scripting. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was informed early about this issue and replied: \\&#8221;We are already working on this case, and the issues will be resolved in one of the upcoming patches.\\&#8221;&#8221;,&#8221;published&#8221;:&#8221;2025-09-11T16:02:05.500Z&#8221;,&#8221;modified&#8221;:&#8221;2025-09-11T16:02:05.500Z&#8221;,&#8221;type&#8221;:&#8221;cve&#8221;,&#8221;title&#8221;:&#8221;Ascensio System SIA OnlyOffice Comment Messages.aspx cross site scripting&#8221;,&#8221;source&#8221;:&#8221;VulDB&#8221;,&#8221;references&#8221;:&#8221;https:\/\/vuldb.com\/?id.323615\\nhttps:\/\/vuldb.com\/?ctiid.323615\\nhttps:\/\/vuldb.com\/?submit.635871\\nhttps:\/\/hkohi.ca\/vulnerability\/21&#8243;,&#8221;id&#8221;:&#8221;CVE-2025-10255&#8243;,&#8221;bulletinFamily&#8221;:&#8221;&#8221;,&#8221;cwe&#8221;:[&#8220;CWE-79&#8243;,&#8221;CWE-94&#8243;],&#8221;cvelist&#8221;:null,&#8221;sourceData&#8221;:&#8221;Ascensio System SIA OnlyOffice 12.0\\nAscensio System SIA OnlyOffice 12.1\\nAscensio System SIA OnlyOffice 12.2\\nAscensio System SIA OnlyOffice 12.3\\nAscensio System SIA OnlyOffice 12.4\\nAscensio System SIA OnlyOffice 12.5\\nAscensio System SIA OnlyOffice 12.6\\nAscensio System SIA OnlyOffice 12.7.0&#8243;,&#8221;sourceHref&#8221;:&#8221;&#8221;,&#8221;cvss&#8221;:{&#8220;score&#8221;:5.1,&#8221;severity&#8221;:&#8221;MEDIUM&#8221;,&#8221;vector&#8221;:&#8221;CVSS:4.0\/AV:N\/AC:L\/AT:N\/PR:L\/UI:P\/VC:N\/VI:L\/VA:N\/SC:N\/SI:N\/SA:N\/E:P&#8221;,&#8221;version&#8221;:&#8221;4.0&#8243;},&#8221;cvss2&#8243;:{},&#8221;cvss3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;,&#8221;cvssV3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;}},&#8221;href&#8221;:&#8221;&#8221;,&#8221;category_name&#8221;:&#8221;CVE&#8221;,&#8221;post_link&#8221;:&#8221;&#8221;,&#8221;product&#8221;:&#8221;OnlyOffice&#8221;,&#8221;version&#8221;:&#8221;12.0&#8243;,&#8221;vendor&#8221;:&#8221;Ascensio System SIA&#8221;,&#8221;ai_description&#8221;:&#8221;&#8221;,&#8221;ai_severity&#8221;:&#8221;&#8221;,&#8221;ai_vendor&#8221;:&#8221;&#8221;,&#8221;ai_product&#8221;:&#8221;&#8221;,&#8221;ai_version&#8221;:&#8221;&#8221;,&#8221;ai_score&#8221;:0}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A vulnerability was determined in Ascensio System SIA OnlyOffice up to 12.7.0. Impacted is an unknown function of the file \/Products\/Projects\/Messages.aspx of the component Comment&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,109,12,21,13,7,11,5],"class_list":["post-17127","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-51","tag-exploit","tag-medium","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ascensio System SIA OnlyOffice Comment Messages.aspx cross site scripting_CVE-2025-10255 - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=17127\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ascensio System SIA OnlyOffice Comment Messages.aspx cross site scripting_CVE-2025-10255 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A vulnerability was determined in Ascensio System SIA OnlyOffice up to 12.7.0. 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