Security readout for executives and security teams
Plain-English summary
CVE-2021-37413 is a SQL injection issue in the GRANDCOM DynWEB admin login before version 4.2. A remote unauthenticated attacker could gain administrative webpage access, access user data, modify content, and upload files. Public metadata does not provide CVSS scoring or complete affected-product identifiers.
Executive priority
Prioritize confirmed internet-facing DynWEB deployments because the described impact reaches administrative control and content/file modification. The business urgency is high for exposed pre-4.2 systems, but confidence is limited by missing CVSS, CPE, and vendor remediation detail in the supplied metadata.
Technical view
The CVE describes insufficient verification and sanitization of user-provided strings in the backend admin login script for GRANDCOM DynWEB before 4.2. The reported impact includes administrative access, user database access, web content modification, and custom file upload. No CWE, CVSS, or CPE data is supplied in the provided bundle.
Likely exposure
Exposure is likely limited to organizations operating GRANDCOM DynWEB versions before 4.2, especially where the admin login interface is reachable from untrusted networks. Because affected vendor, product, and CPE fields are listed as n/a, asset validation may require manual inventory and vendor confirmation.
Exploitation context
The provided bundle does not show CISA KEV listing or other cited evidence of active exploitation. The vulnerability is remotely reachable and unauthenticated according to the CVE description, but exploit maturity, public weaponization, and observed exploitation are not established by the supplied sources.
Researcher notes
Treat this as a source-described unauthenticated SQL injection in the admin login path. The evidence bundle names GRANDCOM DynWEB before 4.2 but has n/a affected metadata and no CVSS/CWE. Avoid assuming broader GRANDCOM products or active exploitation without additional vendor or threat-intelligence confirmation.
Mitigation direction
- Check GRANDCOM guidance for fixed versions and remediation instructions.
- Upgrade or retire GRANDCOM DynWEB installations before 4.2 where confirmed.
- Restrict admin login access to trusted networks or VPN only.
- Review admin users, changed web content, and uploaded files.
- Monitor logs for unusual login attempts or content changes.
Validation and detection
- Inventory systems for GRANDCOM DynWEB and record exact versions.
- Confirm whether any instance is older than version 4.2.
- Identify whether admin login pages are internet-accessible.
- Review application logs for anomalous admin authentication activity.
- Check user database and web content integrity after suspected exposure.
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.
Database behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-37413 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.grandcom.sk/CVE reference · x_refsource_MISC
- https://github.com/martinkubecka/CVE-References/blob/main/CVE-2021-37413.mdCVE 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.