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This can lead to spam, disruption, or abuse of notification systems.\n\uFEFF\n### Details\n\uFEFF\nThe framework provides a command `/echo` that causes the bot to repeat any user-provided message verbatim in the group chat. However, the bot fails to sanitize or filter platform-specific control elements such as `<qqbot-at-everyone />`, which, when included in a message, mentions everyone (i.e., @全体成员). While normal users are forbidden from using this tag in normal chats, the bot, which has higher privileges, is allowed to do so.\n\uFEFF\nSince the `/echo` command blindly echoes any content, a user can exploit this by sending:\n\uFEFF\n```\n/echo <qqbot-at-everyone />\n```\n\uFEFF\nThe bot will then send a message containing `<qqbot-at-everyone />`, causing the platform to interpret it as an @全体成员 command, effectively allowing an unauthorized user to @everyone via the bot.\n\uFEFF\n### PoC\n\uFEFF\n1. Set up a chatbot using the affected framework.\n2. Join the chat that includes the bot as a regular user with **no permission to use @全体成员**.\n3. Send the following message in the chat:\n\uFEFF\n```\n/echo <qqbot-at-everyone />\n```\n4. The bot will respond by repeating the message, and the platform will interpret `<qqbot-at-everyone />` as an @全体成员 mention.\n5. All the chat members receive a notification, despite the user lacking that permission.\n\uFEFF\n\uFEFF","state":0,"publishedAt":"2025-05-19T16:25:05+00:00","modifiedAt":"2026-09-10T03:50:57.5964781+00:00","affected":[{"ecosystem":"npm","name":"cocotais-bot","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"1.5.0-test2-hotfix"},{"kind":"fixed","version":"1.6.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/cocotais/cocotais-bot/security/advisories/GHSA-mj2c-8hxf-ffvq","https://nvd.nist.gov/vuln/detail/CVE-2025-47948","https://github.com/cocotais/cocotais-bot/commit/d1cf01a9a41b3131241d1833444b890c8d6e70b8","https://github.com/cocotais/cocotais-bot"],"sourceUrl":"https://github.com/advisories/GHSA-mj2c-8hxf-ffvq","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-mj2c-8hxf-ffvq","identifiers":["GHSA-mj2c-8hxf-ffvq","CVE-2025-47948"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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