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Known vulnerabilities in Unknown ActivityPub

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CVE Summary Score Published
CVE-2026-4338 The ActivityPub WordPress plugin before 8.0.2 does not properly filter posts to be displayed, allowed unauthenticated… 7.5 High Apr 8, 2026
CVE-2023-3706 The ActivityPub WordPress plugin before 1.0.0 does not ensure that post titles to be displayed are public and belong… 4.3 Medium Oct 16, 2023
CVE-2023-3746 The ActivityPub WordPress plugin before 1.0.0 does not sanitize and escape some data from post content, which could… 5.4 Medium Oct 16, 2023
CVE-2023-5057 The ActivityPub WordPress plugin before 1.0.0 does not escape user metadata before outputting them in mentions, which… Not rated Oct 16, 2023
CVE-2023-3707 The ActivityPub WordPress plugin before 1.0.0 does not ensure that post contents to be displayed are public and belong… 4.3 Medium Oct 16, 2023

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