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CVE-2026-18403— LimeSurvey Community Edition 7.0.5 - Authenticated SQL injection in CPDB

Quick assessment

Affected
LimeSurvey LimeSurvey
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LimeSurvey是LimeSurvey组织开源的一款在线调查问卷系统。 LimeSurvey 7.0.5版本存在SQL注入漏洞，该漏洞源于Central Participant Database（CPDB）工作流程在将调查参与者令牌复制到中央参与者列表时存在经过身份验证的SQL注入漏洞。

CVSS 6.0 · Medium EPSS 0.38% · P29

Affected Version Matrix 1

VendorProduct Version RangeStatus
LimeSurvey LimeSurvey 7.0.5 affected
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I. Basic Information for CVE-2026-18403

Vulnerability Information
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Vulnerability Title
LimeSurvey Community Edition 7.0.5 - Authenticated SQL injection in CPDB
Source: CVE Program / CVE List V5
Vulnerability Description
LimeSurvey Community Edition 7.0.5 contains an authenticated SQL injection vulnerability in the Central Participant Database (CPDB) workflow that copies survey participant tokens to the central participant list.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
LimeSurvey SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LimeSurvey是LimeSurvey组织开源的一款在线调查问卷系统。 LimeSurvey 7.0.5版本存在SQL注入漏洞，该漏洞源于Central Participant Database（CPDB）工作流程在将调查参与者令牌复制到中央参与者列表时存在经过身份验证的SQL注入漏洞。
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
LimeSurvey LimeSurvey 7.0.5 -

II. Public POCs for CVE-2026-18403

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III. Intelligence Information for CVE-2026-18403

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Patches & Fixes for CVE-2026-18403 (1)

Vendor Advisories for CVE-2026-18403 (1)

IV. Related Vulnerabilities

Same product: LimeSurvey
Same vendor: LimeSurvey
Same weakness: CWE-89

V. Comments for CVE-2026-18403

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