Security readout for executives and security teams
Plain-English summary
A public WordPress site using Quiz And Survey Master version 8.1.4 or earlier may expose its database to unauthenticated SQL injection. The main business risk is data exposure from a reachable website plugin, with some availability impact. No provided source confirms active exploitation.
Executive priority
Treat this as urgent for any public WordPress property using the plugin. The issue is critical because exploitation requires no login and targets database confidentiality. Absence from KEV lowers confirmed campaign urgency but does not lower remediation priority.
Technical view
CVE-2023-28787 is CWE-89 SQL injection in ExpressTech Quiz And Survey Master, package quiz-master-next, affecting versions through 8.1.4. CVSS 3.1 is 9.3, with network access, low complexity, no privileges, no user interaction, scope change, high confidentiality impact, and low availability impact.
Likely exposure
Exposure is likely on internet-facing WordPress sites that have Quiz And Survey Master installed at version 8.1.4 or earlier. The CVE data does not identify specific configurations, CPEs, or hosting environments beyond the plugin.
Exploitation context
The CVSS vector supports remote unauthenticated exploitation without user interaction. The bundle marks KEV as false and provides no cited evidence of active exploitation, public exploit maturity, or weaponized campaigns.
Researcher notes
The source bundle lacks a named fixed version, proof-of-concept status, and exploit telemetry. Validation should focus on plugin presence, installed version, internet reachability, and log evidence. Avoid assuming other ExpressTech products are affected without additional vendor evidence.
Mitigation direction
- Inventory WordPress sites for the quiz-master-next plugin.
- Check vendor or Patchstack guidance for the fixed version.
- Update the plugin if a patched release is available.
- Disable or remove the plugin if it cannot be updated safely.
- Prioritize externally reachable WordPress sites first.
- Monitor for suspicious database errors or plugin requests.
Validation and detection
- Confirm each WordPress site has no plugin version through 8.1.4.
- Verify plugin inventory includes inactive and staging WordPress installations.
- Review web and application logs for unauthenticated plugin access anomalies.
- Check database logs for unusual query errors during suspicious requests.
- Document remediation status for each affected site.
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-2023-28787 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
- Critical
- CVSS
- 9.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
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:C/C:H/I:N/A:L3.94.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.3CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
Source materials
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.