Vulnerability-Lookup

GHSA-MJ2C-8HXF-FFVQ

Vulnerability from github – Published: 2025-05-19 16:25 – Updated: 2025-05-19 16:25

Summary

Cocotais Bot has builtin .echo command injection

Details

Summary

A command echoing feature in the framework allows users to indirectly trigger privileged behavior by injecting special platform tags. Specifically, an unauthorized user can use the /echo <qqbot-at-everyone /> command to cause the bot to send a message that mentions all members in the chat, bypassing any permission controls. This can lead to spam, disruption, or abuse of notification systems.

Details

The 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. Since the /echo command blindly echoes any content, a user can exploit this by sending:

/echo <qqbot-at-everyone />

The 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.

PoC

1. Set up a chatbot using the affected framework. 2. Join the chat that includes the bot as a regular user with no permission to use @全体成员. 3. Send the following message in the chat:

/echo <qqbot-at-everyone />

The bot will respond by repeating the message, and the platform will interpret <qqbot-at-everyone /> as an @全体成员 mention.
All the chat members receive a notification, despite the user lacking that permission.

Severity ?

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "cocotais-bot"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.5.0-test2-hotfix"
            },
            {
              "fixed": "1.6.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-47948"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-74"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-05-19T16:25:05Z",
    "nvd_published_at": "2025-05-17T19:15:46Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\ufeff\nA command echoing feature in the framework allows users to indirectly trigger privileged behavior by injecting special platform tags. Specifically, an unauthorized user can use the `/echo \u003cqqbot-at-everyone /\u003e` command to cause the bot to send a message that mentions all members in the chat, bypassing any permission controls. 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 `\u003cqqbot-at-everyone /\u003e`, which, when included in a message, mentions everyone (i.e., @\u5168\u4f53\u6210\u5458). 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 \u003cqqbot-at-everyone /\u003e\n```\n\ufeff\nThe bot will then send a message containing `\u003cqqbot-at-everyone /\u003e`, causing the platform to interpret it as an @\u5168\u4f53\u6210\u5458 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 @\u5168\u4f53\u6210\u5458**.\n3. Send the following message in the chat:\n\ufeff\n```\n/echo \u003cqqbot-at-everyone /\u003e\n```\n4. The bot will respond by repeating the message, and the platform will interpret `\u003cqqbot-at-everyone /\u003e` as an @\u5168\u4f53\u6210\u5458 mention.\n5. All the chat members receive a notification, despite the user lacking that permission.\n\ufeff\n\ufeff",
  "id": "GHSA-mj2c-8hxf-ffvq",
  "modified": "2025-05-19T16:25:05Z",
  "published": "2025-05-19T16:25:05Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cocotais/cocotais-bot/security/advisories/GHSA-mj2c-8hxf-ffvq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47948"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cocotais/cocotais-bot/commit/d1cf01a9a41b3131241d1833444b890c8d6e70b8"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cocotais/cocotais-bot"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cocotais Bot has builtin .echo command injection"
}

CVE-2025-47948 (GCVE-0-2025-47948)

Vulnerability from cvelistv5 – Published: 2025-05-17 18:42 – Updated: 2025-05-19 14:43

Title

Cocotais Bot has builtin .echo command injection

Summary

Cocotais Bot is a QQ official robot framework based on qq-bot-sdk. Starting in version 1.5.0-test2-hotfix and prior to version 1.6.2, command echoing feature in the framework allows users to indirectly trigger privileged behavior by injecting special platform tags. Specifically, an unauthorized user can use the `/echo <qqbot-at-everyone />` command to cause the bot to send a message that mentions all members in the chat, bypassing any permission controls. This can lead to spam, disruption, or abuse of notification systems. Version 1.6.2 contains a patch for the issue.

Severity ?

7.2 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L

CWE

CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/cocotais/cocotais-bot/security…	x_refsource_CONFIRM
	https://github.com/cocotais/cocotais-bot/commit/d…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	cocotais	cocotais-bot	Affected: >= 1.5.0-test2-hotfix, < 1.6.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-47948",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-19T14:43:47.464051Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        "providerMetadata": {
          "dateUpdated": "2025-05-19T14:43:51.360Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/cocotais/cocotais-bot/security/advisories/GHSA-mj2c-8hxf-ffvq"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "cocotais-bot",
          "vendor": "cocotais",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.5.0-test2-hotfix, \u003c 1.6.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Cocotais Bot is a QQ official robot framework based on qq-bot-sdk. Starting in version 1.5.0-test2-hotfix and prior to version 1.6.2, command echoing feature in the framework allows users to indirectly trigger privileged behavior by injecting special platform tags. Specifically, an unauthorized user can use the `/echo \u003cqqbot-at-everyone /\u003e` command to cause the bot to send a message that mentions all members in the chat, bypassing any permission controls. This can lead to spam, disruption, or abuse of notification systems. Version 1.6.2 contains a patch for the issue."
        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)",
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      "providerMetadata": {
        "dateUpdated": "2025-05-17T18:42:24.382Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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      },
      "references": [
        {
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          "tags": [
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          "url": "https://github.com/cocotais/cocotais-bot/commit/d1cf01a9a41b3131241d1833444b890c8d6e70b8"
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      ],
      "source": {
        "advisory": "GHSA-mj2c-8hxf-ffvq",
        "discovery": "UNKNOWN"
      },
      "title": "Cocotais Bot has builtin .echo command injection"
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  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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    "datePublished": "2025-05-17T18:42:24.382Z",
    "dateReserved": "2025-05-14T10:32:43.530Z",
    "dateUpdated": "2025-05-19T14:43:51.360Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-MJ2C-8HXF-FFVQ

Summary

Details

PoC

CVE-2025-47948 (GCVE-0-2025-47948)

Tags

Sightings

Nomenclature