Security readout for executives and security teams
Plain-English summary
Affected Shopware stores could let an authenticated user trigger operating-system command injection through mail agent settings. Successful abuse could compromise confidentiality, integrity, and availability of the Shopware host. The vendor fixed this in 6.4.3.1 and provided security-plugin measures for older 6.1, 6.2, and 6.3 branches.
Executive priority
Treat this as a high-priority remediation for any affected Shopware store because compromise could affect store data, transactions, and service availability. The authentication requirement lowers likelihood versus unauthenticated remote flaws, but the business impact remains severe.
Technical view
CVE-2021-37708 is a CWE-77 command injection flaw in Shopware platform mail agent settings before 6.4.3.1. The CVSS 3.1 score is 8.8 with network access, low attack complexity, low privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Internet-facing Shopware platform deployments running versions up to 6.4.3.0 are the relevant exposure. Risk depends on whether an attacker can authenticate and reach mail agent settings. The source bundle does not identify specific roles, deployment modes, or hosted-service boundaries.
Exploitation context
The sources do not state active exploitation, and the CVE is not marked as KEV in the provided bundle. The CVSS vector indicates exploitation requires some privileges but no user interaction, with potentially full host-level impact if command injection succeeds.
Researcher notes
Primary evidence is vendor advisory metadata and the linked patch commit. The bundle does not include exploit details, affected role requirements, or proof of in-the-wild exploitation. Validate exposure by version and configuration rather than assuming every Shopware instance is exploitable.
Mitigation direction
- Upgrade Shopware platform to 6.4.3.1 or later.
- For 6.1, 6.2, or 6.3, apply the corresponding Shopware security plugin measures.
- Restrict access to mail agent settings until remediation is complete.
- Check the Shopware advisory for any branch-specific guidance before changes.
- Prioritize backups and recovery readiness for affected Shopware hosts.
Validation and detection
- Confirm the installed Shopware platform version is 6.4.3.1 or later.
- Inventory any Shopware 6.1, 6.2, or 6.3 systems using the security plugin workaround.
- Review administrative access to mail agent settings.
- Check audit logs for unusual mail settings changes before remediation.
- Verify remediation in staging before production deployment.
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-77: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-37708 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
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/shopware/platform/security/advisories/GHSA-xh55-2fqp-p775CVE reference · x_refsource_CONFIRM
- https://github.com/shopware/platform/commit/82d8d1995f6ce9054323b2c3522b1b3cf04853aaCVE 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.
Improper Neutralization of Special Elements used in a Command ('Command Injection')
Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.