Security readout for executives and security teams
Plain-English summary
CVE-2020-21486 is a reported SQL injection in PHPOK v5.4. A remote attacker could obtain sensitive information through the _userlist function in framerwork/phpok_call.php. The business risk is data exposure from affected public PHPOK deployments, but the provided sources do not identify a confirmed fix or active exploitation.
Executive priority
Prioritize any public PHPOK v5.4 systems because the reported impact is sensitive information disclosure without authentication. If PHPOK is not used, risk is negligible. If it is used, require rapid owner confirmation and a vendor-guidance-based remediation plan.
Technical view
The CVE describes CWE-89 SQL injection in PHPOK v5.4, reachable remotely with low complexity and no privileges or user interaction per CVSS 3.1. Impact is limited to confidentiality in the record, with high confidentiality impact and no stated integrity or availability impact.
Likely exposure
Exposure is most likely on internet-facing PHPOK v5.4 installations where the vulnerable _userlist functionality in framerwork/phpok_call.php is reachable. The source bundle does not provide CPEs, vendor metadata, or affected ranges beyond v5.4.
Exploitation context
The issue is publicly referenced in a GitHub issue, but the bundle marks KEV as false and provides no cited evidence of active exploitation. Treat it as publicly disclosed and potentially discoverable, not confirmed exploited.
Researcher notes
Evidence is sparse: the CVE record names PHPOK v5.4, _userlist, and framerwork/phpok_call.php, with CVSS 7.5. No affected CPEs, patch version, exploit maturity, or mitigation details are included in the provided bundle.
Mitigation direction
- Inventory PHPOK deployments and identify any v5.4 instances.
- Check the PHPOK project issue and vendor guidance for confirmed fixes.
- Restrict external access to affected PHPOK functionality where practical.
- Apply least-privilege database permissions for PHPOK application accounts.
- Monitor web and database logs for suspicious query behavior.
Validation and detection
- Confirm whether PHPOK v5.4 is present in production or staging.
- Verify whether framerwork/phpok_call.php and _userlist functionality are reachable externally.
- Review logs for unusual requests targeting PHPOK call functionality.
- Use authorized SQL injection testing tools in a controlled validation window.
- Document compensating controls if no vendor fix is 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 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-2020-21486 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
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/qinggan/phpok/issues/8CVE 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.