CVE-2025-47948Public exploitNetwork attack vector

Unauthorized mass mentions via unsanitized echo content

Published May 17, 2025 · Updated May 19, 2025

Injection in Cocotais Bot 1.5.0-test2-hotfix through 1.6.1 allows remote attackers to trigger mass chat notifications via /echo. The builtin handler in src/builtins.ts joins supplied message tokens and passes the resulting content directly to event.reply without filtering QQ platform tags. A regular group member can therefore make the more-privileged bot emit the qqbot-at-everyone tag, notifying every member despite lacking mention permission.

CVSS severity7.2
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Injection in Cocotais Bot 1.5.0-test2-hotfix through 1.6.1 allows remote attackers to trigger mass chat notifications via /echo. The builtin handler in src/builtins.ts joins supplied message tokens and passes the resulting content directly to event.reply without filtering QQ platform tags. A regular group member can therefore make the more-privileged bot emit the qqbot-at-everyone tag, notifying every member despite lacking mention permission.

The record

CVE
CVE-2025-47948
Published
May 17, 2025
Updated
May 19, 2025
Vendor
Cocotais
Product
Cocotais Bot
Classifications
CWE-74
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 17, 2025CVE publishedPublication date reported by the CVE source.
  2. May 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 1.5.0-test2-hotfix, < 1.6.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Cocotais · Cocotais Botversion=>= 1.5.0-test2-hotfix, < 1.6.2

Published CVSS scores

6.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
7.2CocotaisCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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