{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-29236 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2022-29236 yet. Limit exposure of the affected software until one is available.","what":"CVE-2022-29236 is a medium-severity missing authorization vulnerability in bigbluebutton, published on 1 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-29236 and fix it if it is affected.\n\nWhat it is: CVE-2022-29236 is a medium-severity missing authorization vulnerability in bigbluebutton, published on 1 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2022-29236 in the wild and no public exploit code.\n\nAffected product: bigbluebutton. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2022-29236/ (Markdown: https://insights.sbomify.com/CVE-2022-29236/index.md)","id":"CVE-2022-29236","markdown":"https://insights.sbomify.com/CVE-2022-29236/index.md","name":"CVE-2022-29236","record":{"aliases":["GHSA-p93g-r9gm-9v6r"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Web conferencing system","requires_auth":"low_privilege","summary":"An attacker who is a meeting participant can bypass permission checks to draw on the whiteboard, modifying shared content without authorization.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"bigbluebutton","vendor":"bigbluebutton"}],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-285","name":"Improper Authorization"}],"description":"BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker can circumvent access restrictions for drawing on the whiteboard. The permission check is inadvertently skipped on the server, due to a previously introduced grace period. The attacker must be a meeting participant. The problem has been patched in versions 2.3.18 and 2.4-rc-6. There are currently no known workarounds.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Improper access control for pencil annotations in BigBlueButton","id":"CVE-2022-29236","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2022"},"n_packages":0,"n_references":5,"next":{"headline":"Limited Authentication Bypass for Media Files in Opencast","id":"CVE-2022-29237"},"packages":[],"prev":{"headline":"Limited data exposure for shared external videos in BigBlueButton","id":"CVE-2022-29235"},"products":["bigbluebutton"],"published":"2022-06-01","related":[{"cvss_score":9.8,"headline":"Other in n/a","id":"CVE-2020-27602","kev_date_added":null,"published":"2020-10-21"},{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2020-27605","kev_date_added":null,"published":"2020-10-21"},{"cvss_score":9.8,"headline":"Path traversal in n/a","id":"CVE-2020-12443","kev_date_added":null,"published":"2020-04-29"},{"cvss_score":8.4,"headline":"Hardcoded credentials in n/a","id":"CVE-2020-27613","kev_date_added":null,"published":"2020-10-21"},{"cvss_score":8.1,"headline":"Cross-site Scripting (XSS) - Generic in bigbluebutton/bigbluebutton","id":"CVE-2021-4143","kev_date_added":null,"published":"2022-01-19"},{"cvss_score":7.5,"headline":"BigBlueButton vulnerable to DoS via PollSubmitVote GraphQL mutation","id":"CVE-2025-61601","kev_date_added":null,"published":"2025-10-09"},{"cvss_score":7.5,"headline":"BigBlueButton vulnerable to Chat DoS via invalid reactionEmojiId","id":"CVE-2025-61602","kev_date_added":null,"published":"2025-10-09"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["bigbluebutton"]},"summary":"An attacker who is a meeting participant can bypass permission checks to draw on the whiteboard, modifying shared content without authorization.","url":"https://insights.sbomify.com/CVE-2022-29236/"}