Security readout for executives and security teams
Plain-English summary
CVE-2026-2412 affects the WordPress Quiz and Survey Master plugin through version 10.3.5. A logged-in user with Contributor-level access or higher could abuse a quiz question parameter to read sensitive database information. This is not reported as actively exploited in the provided sources, but it matters for sites that allow lower-privileged content contributors.
Executive priority
Treat as a prompt WordPress plugin update, especially on sites with many contributors. Business risk is mainly unauthorized database data exposure. It is less urgent than unauthenticated or actively exploited flaws, but should not wait through normal long maintenance cycles.
Technical view
The flaw is SQL injection in the QSM plugin's 'merged_question' parameter. Input was sanitized with sanitize_text_field(), but then concatenated into a SQL IN() clause without $wpdb->prepare() or integer casting. The CVSS 3.1 score is 6.5, with low attack complexity, required low privileges, no user interaction, and high confidentiality impact.
Likely exposure
Exposure is limited to WordPress sites running Quiz and Survey Master up to and including 10.3.5 where an attacker can authenticate as Contributor or higher. Public sites with many contributors, guest authors, or weak account controls have higher practical risk.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Exploitation requires authenticated access with Contributor-level permissions or above. Successful abuse could extract sensitive database data, but the cited CVSS vector does not indicate integrity or availability impact.
Researcher notes
Evidence points to vulnerable code paths in class-qsm-questions.php and rest-api.php at version 10.3.5, with remediation-related WordPress Trac changeset 3486710. The sources do not provide a clearly named fixed release in the bundle, so fixed-version confirmation should come from official plugin metadata or vendor guidance.
Mitigation direction
- Check whether Quiz and Survey Master is installed and enabled on WordPress sites.
- Update QSM using official WordPress plugin or vendor guidance.
- If immediate update is unavailable, restrict Contributor-level access to trusted users only.
- Review vendor changelog and WordPress Trac changeset 3486710 for remediation context.
- Remove unused contributor accounts and enforce strong authentication.
Validation and detection
- Inventory WordPress sites for QSM plugin version 10.3.5 or earlier.
- Confirm whether untrusted users have Contributor or higher roles.
- Review QSM update history for changeset 3486710 or later remediation.
- Check web and application logs for unusual authenticated quiz question requests.
- Verify database access controls limit damage from plugin-level SQL injection.
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-2026-2412 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
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/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:L/UI:N/S:U/C:H/I:N/A:N2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b32bf1cb-3722-41fc-be51-dabe80416b14?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.3.5/php/classes/class-qsm-questions.php#L387CVE reference
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.3.5/php/rest-api.php#L760CVE reference
- https://plugins.trac.wordpress.org/changeset/3486710/quiz-master-next/trunk/php/rest-api.phpCVE reference
- https://plugins.trac.wordpress.org/changeset/3486710/quiz-master-next/trunk/php/classes/class-qsm-questions.phpCVE 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.