CVE-2026-14820— Quiz And Survey Master < 11.1.3 - Unauthenticated User Enumeration and Password Oracle via Quiz Login
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Unknown | Quiz and Survey Master (QSM) | < 11.1.3 | affected |
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I. Basic Information for CVE-2026-14820
Vulnerability Information
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Vulnerability Title
Quiz And Survey Master < 11.1.3 - Unauthenticated User Enumeration and Password Oracle via Quiz Login
Source: CVE Program / CVE List V5
Vulnerability Description
The Quiz and Survey Master (QSM) WordPress plugin before 11.1.3 does not implement rate limiting or standard failed-login auditing on its front-end credential-check functionality and returns distinct responses for valid and invalid accounts, allowing unauthenticated attackers to enumerate valid usernames and to brute-force passwords while bypassing brute-force protection Quiz and Survey Master (QSM) WordPress plugin before 11.1.3.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Quiz and Survey Master 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
expresstech quiz and survey master是expresstech公司的一款在线测验软件。 WordPress Quiz and Survey Master 11.1.3之前版本存在信息泄露漏洞，该漏洞源于未实现速率限制或标准失败登录审计，且对有效和无效账户返回不同响应，导致未经身份验证的攻击者能够枚举有效用户名和暴力破解密码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Unknown | Quiz and Survey Master (QSM) | 0 ~ 11.1.3 | - |
II. Public POCs for CVE-2026-14820
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Pages for CVE-2026-14820 (1)
Same Patch Batch · Unknown · 2026-07-27 · 23 CVEs total
| CVE-2026-14190 | Sina Extension for Elementor < 3.10.2 - Reflected XSS | |
| CVE-2026-14827 | Calendar < 1.3.18 - Contributor+ Stored XSS via event_link Parameter | |
| CVE-2026-9830 | BookingPress Pro < 5.7.3 - Unauthenticated Customer PII Disclosure and Booking Tampering v | |
| CVE-2026-14203 | Smart Manager < 8.92.0 - Contributor+ Stored XSS via Post Title | |
| CVE-2026-14568 | WP User Frontend < 4.3.8 - Unauthenticated Author-less Attachment Deletion | |
| CVE-2026-14236 | Contact Form 7 – PayPal & Stripe Add-on < 2.5 - Open Redirect | |
| CVE-2026-14289 | WP FacturaONE < 5.37 - Unauthenticated Remote Code Execution | |
| CVE-2026-14235 | WordPress Download Manager < 3.3.62 - Unauthorized Protected File Download via Reusable Do | |
| CVE-2026-13597 | QRcode Login for WeChat <= 1.3 - Unauthenticated Account Takeover | |
| CVE-2026-13726 | Multiple Page Generator Plugin – MPG < 4.1.8 - Reflected XSS via mpg_shortcode | |
| CVE-2026-13714 | Realtyna Organic IDX plugin + WPL Real Estate < 5.3.0 - Unauthenticated Arbitrary File Upl | |
| CVE-2026-10082 | Advanced Ads – Ad Manager & AdSense < 2.0.23 - Contributor+ Stored XSS via the_ad Shortcod | |
| CVE-2026-14189 | WPBot AI ChatBot < 8.5.2 - Admin+ Second-Order SQL Injection via qc_bot_str_fields | |
| CVE-2026-13400 | Simply Schedule Appointments < 1.6.12.4 - Unauthenticated Stored XSS via Booking Customer | |
| CVE-2026-13332 | Masteriyo LMS < 2.3.1 - Unauthenticated Arbitrary User Session Termination (Denial of Serv | |
| CVE-2026-13390 | The Events Calendar < 6.16.5.1 - Unauthenticated Event Aggregator Import Status Manipulati | |
| CVE-2026-13152 | Custom Fields Account Registration For WooCommerce < 1.4 - Unauthenticated Privilege Escal | |
| CVE-2026-12982 | Document Gallery < 5.1.1 - Reflected XSS via dg_generate_gallery | |
| CVE-2026-12255 | MainWP Child < 6.1.2 - Unauthenticated Administrator Authentication Bypass via Passwordles | |
| CVE-2026-12394 | MemberGlut < 1.1.5 - Unauthenticated Privilege Escalation to Administrator |
Showing top 20 of 23 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Quiz and Survey Master (QSM)
- CVE-2026-14821
Quiz And Survey Master < 11.1.5 - Contributor+ Arbitrary Tem - CVE-2025-6790
QSM < 10.2.3 - Template Creation via CSRF - CVE-2024-10679
Quiz and Survey Master (QSM) < 9.2.1 - Author+ Stored XSS - CVE-2024-8758
Quiz and Survey Master (QSM) < 9.1.3 - Author+ Stored XSS - CVE-2024-6879
Quiz and Survey Master (QSM) < 9.1.1 - Contributor+ Stored X
Same vendor: Unknown
- CVE-2026-16565
Dokan < 5.0.9 - Vendor+ Cross-Vendor Product Attribute Modif - CVE-2026-16572
LogMyTrip <= 1.9 - Unauthenticated SQL Injection via 'tid' C - CVE-2026-16300
Chama < 1.0.13 - Unauthenticated Arbitrary User Password Res - CVE-2026-16563
Academy LMS < 3.8.3 - Subscriber+ Arbitrary Lesson Content D - CVE-2026-16564
Dokan < 5.0.9 - Vendor+ Arbitrary Order Status Modification
V. Comments for CVE-2026-14820
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