Security readout for executives and security teams
Plain-English summary
This flaw affects the Welcome plugin in tmerc-cogs for the Red Discord bot. A Discord user could trigger a crafted membership event that exposes sensitive information. For organizations using this bot plugin, the business risk is accidental disclosure of secrets or internal data through Discord automation.
Executive priority
Prioritize remediation where Discord bots have access to secrets, privileged channels, or operational integrations. The issue is narrow in product scope but high impact for confidentiality if the vulnerable Welcome cog is enabled.
Technical view
CVE-2021-37697 is a high-severity sensitive information exposure in tmerc-cogs before commit d63c49b4cfc30c795336e4fff08cba3795e0fcc0. The issue is mapped to CWE-306 and has CVSS 3.1 score 7.1. The published workaround is unloading the Welcome cog; the fix is the referenced commit.
Likely exposure
Exposure is limited to deployments running tmerc-cogs for the Red Discord bot with the Welcome cog enabled and code older than the fixed commit. Systems not using this plugin or not loading Welcome are not indicated as affected by the sources.
Exploitation context
The source states any user could access sensitive information by crafting a specific membership event message. CISA KEV is false in the bundle, and no cited source claims active exploitation. Treat exploit status as unconfirmed, not actively exploited.
Researcher notes
The public bundle identifies the affected component, vulnerable range, CVSS vector, patch commit, and workaround. It does not provide confirmed exploitation, broader affected forks, package release mapping, or detailed sensitive-data categories. Avoid assuming exposure beyond tmerc-cogs Welcome.
Mitigation direction
- Update tmerc-cogs to include commit d63c49b4cfc30c795336e4fff08cba3795e0fcc0 or later.
- Unload the Welcome cog until patched code is deployed.
- Review vendor advisory guidance before re-enabling the Welcome cog.
- Assess exposed bot configuration and rotate secrets if disclosure is suspected.
Validation and detection
- Inventory Red Discord bot instances using tmerc-cogs.
- Confirm whether the Welcome cog is loaded in each bot deployment.
- Compare deployed code with fixed commit d63c49b4cfc30c795336e4fff08cba3795e0fcc0.
- Review bot logs for unusual membership-event activity around affected deployments.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-37697 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N2.84.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/tmercswims/tmerc-cogs/security/advisories/GHSA-77xv-8c2x-j96jCVE reference · x_refsource_CONFIRM
- https://github.com/tmercswims/tmerc-cogs/commit/d63c49b4cfc30c795336e4fff08cba3795e0fcc0CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Missing Authentication for Critical Function
Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.