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      <title>115bbad1-3576-4477-8702-8c3258e3d837</title>
      <link>https://vulnerability.circl.lu/sighting/115bbad1-3576-4477-8702-8c3258e3d837/export</link>
      <description>{"uuid": "115bbad1-3576-4477-8702-8c3258e3d837", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2022-41961", "type": "seen", "source": "https://t.me/cibsecurity/54660", "content": "\u203c CVE-2022-41961 \u203c\n\nBigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6 are subject to Ineffective user bans. The attacker could register multiple users, and join the meeting with one of them. When that user is banned, they could still join the meeting with the remaining registered users from the same extId. This issue has been fixed by improving permissions such that banning a user removes all users related to their extId, including registered users that have not joined the meeting. This issue is patched in versions 2.4-rc-6 and 2.5-alpha-1. There are no workarounds.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2022-12-16T16:24:20.000000Z"}</description>
      <content:encoded>{"uuid": "115bbad1-3576-4477-8702-8c3258e3d837", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2022-41961", "type": "seen", "source": "https://t.me/cibsecurity/54660", "content": "\u203c CVE-2022-41961 \u203c\n\nBigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6 are subject to Ineffective user bans. The attacker could register multiple users, and join the meeting with one of them. When that user is banned, they could still join the meeting with the remaining registered users from the same extId. This issue has been fixed by improving permissions such that banning a user removes all users related to their extId, including registered users that have not joined the meeting. This issue is patched in versions 2.4-rc-6 and 2.5-alpha-1. There are no workarounds.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2022-12-16T16:24:20.000000Z"}</content:encoded>
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      <pubDate>Fri, 16 Dec 2022 16:24:20 +0000</pubDate>
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      <title>5b752fd7-63fc-4722-a0e8-aa18ef1eb94d</title>
      <link>https://vulnerability.circl.lu/sighting/5b752fd7-63fc-4722-a0e8-aa18ef1eb94d/export</link>
      <description>{"uuid": "5b752fd7-63fc-4722-a0e8-aa18ef1eb94d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2022-41961", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/12303", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2022-41961\n\ud83d\udd25 CVSS Score: 4.3 (cvssV3_1, Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)\n\ud83d\udd39 Description: BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6 are subject to Ineffective user bans. The attacker could register multiple users, and join the meeting with one of them. When that user is banned, they could still join the meeting with the remaining registered users from the same extId. This issue has been fixed by improving permissions such that banning a user removes all users related to their extId, including registered users that have not joined the meeting. This issue is patched in versions 2.4-rc-6 and 2.5-alpha-1. There are no workarounds. \n\ud83d\udccf Published: 2022-12-16T12:24:43.465Z\n\ud83d\udccf Modified: 2025-04-17T17:24:47.412Z\n\ud83d\udd17 References:\n1. https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-wxjp-h88g-7fqg\n2. https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6\n3. https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1", "creation_timestamp": "2025-04-17T17:57:38.000000Z"}</description>
      <content:encoded>{"uuid": "5b752fd7-63fc-4722-a0e8-aa18ef1eb94d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2022-41961", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/12303", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2022-41961\n\ud83d\udd25 CVSS Score: 4.3 (cvssV3_1, Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)\n\ud83d\udd39 Description: BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6 are subject to Ineffective user bans. The attacker could register multiple users, and join the meeting with one of them. When that user is banned, they could still join the meeting with the remaining registered users from the same extId. This issue has been fixed by improving permissions such that banning a user removes all users related to their extId, including registered users that have not joined the meeting. This issue is patched in versions 2.4-rc-6 and 2.5-alpha-1. There are no workarounds. \n\ud83d\udccf Published: 2022-12-16T12:24:43.465Z\n\ud83d\udccf Modified: 2025-04-17T17:24:47.412Z\n\ud83d\udd17 References:\n1. https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-wxjp-h88g-7fqg\n2. https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6\n3. https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1", "creation_timestamp": "2025-04-17T17:57:38.000000Z"}</content:encoded>
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      <pubDate>Thu, 17 Apr 2025 17:57:38 +0000</pubDate>
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