CVE-2026-91775— LimeSurvey Community Edition 7.0.14 - Reflected XSS through unescaped LSS survey-import warnings

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 在显示导入警告时，未能对源自恶意构造的 .lss 调查文件中的、由攻击者控制的内容进行安全的编码处理，从而导致在管理界面中出现跨站脚本（XSS）漏洞。

CVSS 7.4 · High EPSS 0.52% · P44 Updated Oct 03, 2026

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

Vendor	Product	Version Range	Status
LimeSurvey	LimeSurvey	`7.0.14`	affected

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Vulnerability Information

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Vulnerability Title

LimeSurvey Community Edition 7.0.14 - Reflected XSS through unescaped LSS survey-import warnings

Source: CVE Program / CVE List V5

Vulnerability Description

LimeSurvey Community Edition 7.0.14 fails to safely encode attacker-controlled content from a crafted .lss survey file when displaying import warnings, resulting in XSS in the administrative interface.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N

Source: CVE Program / CVE List V5

Vulnerability Type

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
LimeSurvey	LimeSurvey	7.0.14	-

II. Public POCs for CVE-2026-91775

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-91775

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Other References for CVE-2026-91775 (1)

🔗 LimeSurvey Community Edition 7.0.14 - Reflected XSS through unescaped LSS survey-import warnings | Fluid Attacks Read full article third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-91775

IV. Related Vulnerabilities

Same product: LimeSurvey

Same vendor: LimeSurvey

Same weakness: CWE-79