WordPress activitypub has 5 known advisories in the phpwarden feed. Feed 2026.10.29.1, updated 2026-10-28.
| CVE | Title | Severity | CVSS | Affected | Fixed in |
|---|---|---|---|---|---|
| CVE-2023-3706 | The ActivityPub WordPress plugin before 1.0.0 does not ensure that post titles to be displayed are public and belong to the plugin, allowing | medium | 4.3 | <1.0.0 | 1.0.0 |
| CVE-2023-3707 | The ActivityPub WordPress plugin before 1.0.0 does not ensure that post contents to be displayed are public and belong to the plugin, allowi | medium | 4.3 | <1.0.0 | 1.0.0 |
| CVE-2023-3746 | The ActivityPub WordPress plugin before 1.0.0 does not sanitize and escape some data from post content, which could allow contributor and ab | medium | 5.4 | <1.0.0 | 1.0.0 |
| CVE-2023-5057 | The ActivityPub WordPress plugin before 1.0.0 does not escape user metadata before outputting them in mentions, which could allow users with | medium | 5.4 | <1.0.0 | 1.0.0 |
| CVE-2026-4338 | The ActivityPub WordPress plugin before 8.0.2 does not properly filter posts to be displayed, allowed unauthenticated users to access drafts | high | 7.5 | <8.0.2 | 8.0.2 |
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