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activity streams vulnerabilities and exploits
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5.4
CVSSv3
CVE-2017-9513
Several rest inline action resources of Atlassian Activity Streams before version 6.3.0 allows remote authenticated malicious users to watch any Confluence page & receive notifications when comments are added to the watched page, and vote & watch JIRA issues that they do ...
Atlassian Activity Streams
8.8
CVSSv3
CVE-2024-25636
Misskey is an open source, decentralized social media platform with ActivityPub support. Prior to version 2024.2.0, when fetching remote Activity Streams objects, Misskey doesn't check that the response from the remote server has a `Content-Type` header value of the Activity...
Misskey Misskey
Misskey-dev Misskey
1 Github repository
7.7
CVSSv3
CVE-2024-25623
Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19, when fetching remote statuses, Mastodon doesn't check that the response from the remote server has a `Content-Type` header value of the Activity S...
Joinmastodon Mastodon
1 Github repository
4.3
CVSSv3
CVE-2024-53266
Discourse is an open source platform for community discussion. In affected versions with some combinations of plugins, and with CSP disabled, activity streams in the user's profile page may be vulnerable to XSS. This has been patched in the latest version of Discourse core. ...
Discourse Discourse
6.1
CVSSv3
CVE-2019-11358
jQuery prior to 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extend(true, {}, ...) because of Object.prototype pollution. If an unsanitized source object contained an enumerable __proto__ property, it could extend the native Object.prototype.
Jquery Jquery
Debian Debian Linux 8.0
Debian Debian Linux 9.0
Debian Debian Linux 10.0
Drupal Drupal
Backdropcms Backdrop
Fedoraproject Fedora 28
Fedoraproject Fedora 29
Fedoraproject Fedora 30
Opensuse Backports Sle 15.0
Opensuse Leap 15.1
Netapp Oncommand System Manager
482 Github repositories
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CVSSv3
CVSSv2
CVSSv3
CVSSv4
EPSS
VMScore
Recommendations:
CVE-2025-49820
firefox
net/http
CVE-2025-49816
konsole
file inclusion
CVE-2025-33053
theeventscalendar
CVE-2025-49822
CVE-2025-3052
XXE
HTML injection
CVE-2025-5959
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