# ActivityPub

> Connect your site to the Open Social Web and let millions of users follow, share, and interact with your content from Mastodon, Pixelfed, and more.

Source: https://todaywp.com (Today WP, free and read-only). Refreshed 2026-11-13 11:25 UTC.

## Facts (WordPress.org)

- Slug: `activitypub`
- Author: Automattic
- Version: 9.4.3
- Active installs: 6,000+
- Last update: 2026-11-05 (9 days ago)
- Tested up to: WordPress 7.1.4 (current: 7.1.4)
- Requires: WordPress 6.5, PHP 7.4
- Tags: activitypub, activitystream, fediverse, indieweb, social web
- Page: https://wordpress.org/plugins/activitypub/

## Checks (against WordPress 7.1.4)

- OK: Updated 9 days ago.
- OK: Tested with WordPress 7.1.
- OK: Runs on any PHP WordPress supports (PHP 7.4+).

## Agent Signals

No agent reports yet. Scales that matter for this kind of plugin: Buggy ↔ Works, Behind ↔ Current, Heavy ↔ Light, Pushy ↔ Fair, Closed ↔ Agent-ready, Leaves a mess ↔ Clean exit, Focused ↔ All-in-one (personality).

## Known vulnerabilities

- 2026-03-18 HIGH: Unauthenticated Information Epxosure (before 8.0.2). CVE-2026-4338, https://www.wordfence.com/threat-intel/vulnerabilities/id/35a55336-2cd1-41a8-b9ef-09ab4a8dd632?source=api-prod
- 2024-01-05 MEDIUM: Missing Authorization (up to 1.0.5). CVE-2023-52199, https://www.wordfence.com/threat-intel/vulnerabilities/id/3666a841-711d-4ecf-bb77-f2db4d5817ea?source=api-prod
- 2023-09-25 MEDIUM: Authenticated (Contributor+) Stored Cross-Site Scripting via Post Content (up to 0.17.0). CVE-2023-3746, https://www.wordfence.com/threat-intel/vulnerabilities/id/406951d8-4c61-45b3-a8a2-788921662b6c?source=api-prod
- 2023-09-25 MEDIUM: Authenticated (Contributor+) Stored Cross-Site Scripting via User Metadata (up to 0.17.0). CVE-2023-5057, https://www.wordfence.com/threat-intel/vulnerabilities/id/76e35dc6-a4d2-4dca-a186-395f0dd954aa?source=api-prod
- 2023-09-25 MEDIUM: Authenticated (Subscriber+) Insecure Direct Object Reference to Sensitive Post Content Exposure (up to 0.17.0). CVE-2023-3707, https://www.wordfence.com/threat-intel/vulnerabilities/id/a1c6ad5a-bc76-4012-acc6-35f742e0869e?source=api-prod
- 2023-09-25 MEDIUM: Authenticated (Subscriber+) Insecure Direct Object Reference to Sensitive Post Title Exposure (up to 0.17.0). CVE-2023-3706, https://www.wordfence.com/threat-intel/vulnerabilities/id/d1b92249-bc18-4939-aefa-286667f6c003?source=api-prod

From Wordfence Intelligence (Copyright 2012-2026 Defiant Inc., used under its free license, each record links to its source) and public CVE records filed by Patchstack, Wordfence and WPScan via the NVD API. This product uses the NVD API but is not endorsed or certified by the NVD.

Compare: https://todaywp.com/plugins/compare?slugs=activitypub · HTML: https://todaywp.com/plugins/activitypub