cve.bz

CVE-2026-116509 Quiz and Survey Master (QSM) <= 11.2.9 - Authenticated (Contributor+) SQL Injection via 'qpages' Parameter

6.5 mediumEPSS 0.5%

Medium (6.5) in expresstech quiz and survey master (qsm) – quiz maker & survey maker. EPSS 0.5% estimated probability of exploitation activity in the next 30 days.

On this page
The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable to generic SQL Injection via the 'qpages' parameter in all versions up to, and including, 11.2.9 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with contributor-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The injected payload survives storage and a published-status check in display_shortcode() because a non-numeric ID causes the isPublished lookup to return an empty string, after which the payload is imploded directly into a WHERE question_id IN() clause via plain string interpolation with no wpdb->prepare() or esc_sql() call.

Severity

CVSS 3.1

6.5 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
0.5% estimated probability of exploitation activity in the next 30 days; 41st percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC)
Exploitation: none · Automatable: no · Technical impact: partial, assessed 2026-11-13. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE
CWE-89 Improper Neutralization of Special Elements used in an SQL Command (SQL Injection)
OWASP Top 10
A05:2025 Injection
Published
Modified
Assigned by
Wordfence (CNA)
NVD analysis
Deferred: the NVD does not plan to analyze it
Record from
the NVD, synced

Ask an AI about this CVE

ChatGPTClaudeGoogle AI Mode

Show the promptExplain CVE-2026-116509 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-116509?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-116509?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-116509 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.

Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.

Badge for a README or a site

CVE-2026-116509

An image that stays current: it is drawn from the data each time it is fetched (a host that proxies images, as GitHub does, may show its copy for a while). Markdown:

[![CVE-2026-116509](https://cve.bz/cve/badge/CVE-2026-116509.svg)](https://cve.bz/cve/CVE-2026-116509)

HTML:

<a href="https://cve.bz/cve/CVE-2026-116509"><img src="https://cve.bz/cve/badge/CVE-2026-116509.svg" alt="CVE-2026-116509"></a>

Affected

  • expresstech:quiz and survey master (qsm) – quiz maker & survey maker

Versions

From the CNA's record in the CVE List.

ProductAffected
expresstech Quiz and Survey Master (QSM) – Quiz Maker & Survey Makerthrough 11.2.9

Attack patterns (CAPEC)

  • CAPEC-7 Blind SQL Injection Likelihood: High · Severity: High
  • CAPEC-66 SQL Injection Likelihood: High · Severity: High
  • CAPEC-108 Command Line Execution through SQL Injection Likelihood: Low · Severity: Very High
  • CAPEC-109 Object Relational Mapping Injection Likelihood: Low · Severity: High
  • CAPEC-110 SQL Injection through SOAP Parameter Tampering Likelihood: High · Severity: Very High
  • CAPEC-470 Expanding Control over the Operating System from the Database Severity: Very High

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

History

  1. The NVD deferred its analysis

Changes since this site first stored the record. The same for every record: /api/public/changes.

References

Check your stackJSON