ActivityPub Viewer

A small tool to view real-world ActivityPub objects as JSON! Enter a URL or username from Mastodon or a similar service below, and we'll send a request with the right Accept header to the server to view the underlying object.

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{ "@context": [ "https://www.w3.org/ns/activitystreams", { "ostatus": "http://ostatus.org#", "atomUri": "ostatus:atomUri", "inReplyToAtomUri": "ostatus:inReplyToAtomUri", "conversation": "ostatus:conversation", "sensitive": "as:sensitive", "toot": "http://joinmastodon.org/ns#", "votersCount": "toot:votersCount", "Hashtag": "as:Hashtag" } ], "id": "https://urbanists.social/users/markstos/statuses/114162238903159313", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-03-14T18:38:42Z", "url": "https://urbanists.social/@markstos/114162238903159313", "attributedTo": "https://urbanists.social/users/markstos", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://urbanists.social/users/markstos/followers" ], "sensitive": false, "atomUri": "https://urbanists.social/users/markstos/statuses/114162238903159313", "inReplyToAtomUri": null, "conversation": "tag:urbanists.social,2025-03-14:objectId=98815317:objectType=Conversation", "content": "<p>Two critical authentication-bypass vulns in the JavaScript `xml-crypto` module have been disclosed.</p><p>If you use `node-saml` or `passport-saml` which use it for XML handling, you should upgrade immediately.</p><p><a href=\"https://github.com/node-saml/xml-crypto/security/advisories\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">github.com/node-saml/xml-crypt</span><span class=\"invisible\">o/security/advisories</span></a></p><p><a href=\"https://urbanists.social/tags/infosec\" class=\"mention hashtag\" rel=\"tag\">#<span>infosec</span></a> <a href=\"https://urbanists.social/tags/security\" class=\"mention hashtag\" rel=\"tag\">#<span>security</span></a> <a href=\"https://urbanists.social/tags/javascript\" class=\"mention hashtag\" rel=\"tag\">#<span>javascript</span></a> <a href=\"https://urbanists.social/tags/typescript\" class=\"mention hashtag\" rel=\"tag\">#<span>typescript</span></a> <a href=\"https://urbanists.social/tags/nodejs\" class=\"mention hashtag\" rel=\"tag\">#<span>nodejs</span></a></p>", "contentMap": { "en": "<p>Two critical authentication-bypass vulns in the JavaScript `xml-crypto` module have been disclosed.</p><p>If you use `node-saml` or `passport-saml` which use it for XML handling, you should upgrade immediately.</p><p><a href=\"https://github.com/node-saml/xml-crypto/security/advisories\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">github.com/node-saml/xml-crypt</span><span class=\"invisible\">o/security/advisories</span></a></p><p><a href=\"https://urbanists.social/tags/infosec\" class=\"mention hashtag\" rel=\"tag\">#<span>infosec</span></a> <a href=\"https://urbanists.social/tags/security\" class=\"mention hashtag\" rel=\"tag\">#<span>security</span></a> <a href=\"https://urbanists.social/tags/javascript\" class=\"mention hashtag\" rel=\"tag\">#<span>javascript</span></a> <a href=\"https://urbanists.social/tags/typescript\" class=\"mention hashtag\" rel=\"tag\">#<span>typescript</span></a> <a href=\"https://urbanists.social/tags/nodejs\" class=\"mention hashtag\" rel=\"tag\">#<span>nodejs</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://urbanists.social/tags/infosec", "name": "#infosec" }, { "type": "Hashtag", "href": "https://urbanists.social/tags/security", "name": "#security" }, { "type": "Hashtag", "href": "https://urbanists.social/tags/javascript", "name": "#javascript" }, { "type": "Hashtag", "href": "https://urbanists.social/tags/typescript", "name": "#typescript" }, { "type": "Hashtag", "href": "https://urbanists.social/tags/nodejs", "name": "#nodejs" } ], "replies": { "id": "https://urbanists.social/users/markstos/statuses/114162238903159313/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://urbanists.social/users/markstos/statuses/114162238903159313/replies?only_other_accounts=true&page=true", "partOf": "https://urbanists.social/users/markstos/statuses/114162238903159313/replies", "items": [] } }, "likes": { "id": "https://urbanists.social/users/markstos/statuses/114162238903159313/likes", "type": "Collection", "totalItems": 6 }, "shares": { "id": "https://urbanists.social/users/markstos/statuses/114162238903159313/shares", "type": "Collection", "totalItems": 6 } }