Security readout for executives and security teams
Plain-English summary
CVE-2020-21400 is a high-severity SQL injection issue reported in PHPMyWind v5.6. The source says the vulnerable id variable in a modify function could let a remote attacker execute arbitrary code. The structured affected-product data is incomplete, so confirm exposure before urgent remediation work.
Executive priority
Prioritize confirmation of exposure. If PHPMyWind v5.6 is in use, handle as high priority because the reported impact includes full confidentiality, integrity, and availability compromise, although exploitation evidence and patch details are not provided.
Technical view
The CVE describes CWE-89 SQL injection in gaozhifeng PHPMyWind v5.6, tied to the id parameter in a modify function. CVSS 3.1 is 7.2 with network access, low complexity, high privileges required, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Most likely exposure is organizations running PHPMyWind v5.6, especially where the affected modify function is reachable by privileged users. The CVE record’s affected CPE/product fields are listed as n/a, so asset validation must rely on application inventory and source review.
Exploitation context
The CVE is not listed as CISA KEV in the provided bundle. The sources do not establish active exploitation, public exploit use, or a vendor patch. Treat this as a serious authenticated web application risk, but avoid assuming exploitation without additional evidence.
Researcher notes
The record has limited product metadata and one public issue reference. CVSS indicates PR:H, so validation should focus on authenticated privileged paths, not anonymous exposure. Do not infer affected versions beyond PHPMyWind v5.6 unless vendor or project evidence confirms them.
Mitigation direction
- Inventory PHPMyWind deployments and confirm whether version 5.6 is present.
- Check the referenced vendor issue and project guidance for an official fix or workaround.
- Restrict access to administrative or modify functions to trusted users and networks.
- If maintaining code, review database calls for parameterized query handling.
- Increase monitoring around privileged PHPMyWind actions and database error patterns.
Validation and detection
- Confirm application name, version, and whether PHPMyWind v5.6 is deployed.
- Map whether the referenced modify function exists in the deployed codebase.
- Confirm whether access to the affected function requires high privileges.
- Review logs for unusual privileged modification activity or database errors.
- Document whether vendor guidance, patch status, or compensating controls are available.
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-89: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. 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 lookupDatabase 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-2020-21400 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
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/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:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/gaozhifeng/PHPMyWind/issues/11CVE reference
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 an SQL Command ('SQL Injection')
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.