Known Vulnerabilities for Mastodon by Joinmastodon

Listed below are 10 of the newest known vulnerabilities associated with "Mastodon" by "Joinmastodon".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-33869 json Mastodon is a free, open-source social network server based on ActivityPub. In versions on the 4.5.x branch prior to 4.5.8 an... Not Provided 2026-03-27 2026-03-27
CVE-2026-33868 json Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.8, 4.4.15, and 4.3.21, an u... Not Provided 2026-03-27 2026-03-31
CVE-2025-22660 json Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Wolfgang Include Mastod... Not Provided 2025-03-27 2026-04-01
CVE-2024-11455 json The Include Mastodon Feed plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'include-mastodo... Not Provided 2024-11-21 2026-04-08
CVE-2023-42452 json Mastodon is a free, open-source social network server based on ActivityPub. In versions on the 4.x branch prior to versions 4... 5.4 - MEDIUM 2023-09-19 2023-09-22
CVE-2023-42451 json Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 3.5.14, 4.0.10, 4.1.8, and 4.2.... 7.5 - HIGH 2023-09-19 2023-09-22
CVE-2023-42450 json Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 4.2.0-beta1 and prior to vers... 7.5 - HIGH 2023-09-19 2023-09-25
CVE-2023-36462 json Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 2.6.0 and prior to versions 3... 5.4 - MEDIUM 2023-07-06 2023-07-13
CVE-2023-36461 json Mastodon is a free, open-source social network server based on ActivityPub. When performing outgoing HTTP queries, Mastodon s... 7.5 - HIGH 2023-07-06 2023-07-14
CVE-2023-36460 json Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 3.5.0 and prior to versions 3... 9.9 - CRITICAL 2023-07-06 2023-07-14
Results limited to 10 most recent vulnerabilities

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationJoinmastodonMastodon2.9.3
ApplicationJoinmastodonMastodon2.9.2
ApplicationJoinmastodonMastodon2.9.1
ApplicationJoinmastodonMastodon2.9.0
ApplicationJoinmastodonMastodon2.9.0
ApplicationJoinmastodonMastodon2.9.0
ApplicationJoinmastodonMastodon2.8.4
ApplicationJoinmastodonMastodon2.8.3
ApplicationJoinmastodonMastodon2.8.2
ApplicationJoinmastodonMastodon2.8.1
ApplicationJoinmastodonMastodon2.8.0
ApplicationJoinmastodonMastodon2.8.0
ApplicationJoinmastodonMastodon2.8.0
ApplicationJoinmastodonMastodon2.8.0
ApplicationJoinmastodonMastodon2.7.4
ApplicationJoinmastodonMastodon2.7.3
ApplicationJoinmastodonMastodon2.7.2
ApplicationJoinmastodonMastodon2.7.1
ApplicationJoinmastodonMastodon2.7.0
ApplicationJoinmastodonMastodon2.7.0
Results limited to 20 most recent known configurations
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