CVE-2026-91775

Description

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

Overview

State: PUBLISHED
Assigner (CNA): Fluid Attacks
CVSS severity: HIGH
CVSS score: 7.4 / 10
CVSS vector: 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
Effective score: 7.4 / 10 HIGH source: CNA overview
CWE(s): CWE-79
Reserved: 2026-09-15
Published: 2026-09-23 17:13 UTC
Last updated: 2026-09-23 17:44 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/91xxx/CVE-2026-91775.json
Linked Threat: CVE-2026-91775 — LimeSurvey Community Edition 7.0.14 - Reflected XSS through unescaped LSS survey-import warnings

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-23 18:17:11 UTC
NVD last modified: 2026-09-23 18:17:11 UTC

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-85427
Assigner: Fluid Attacks
Published: Sep 23, 2026, 5:13:46 PM
Updated: Sep 23, 2026, 5:44:18 PM
EUVD base score (CVSS 4.0): 7.4 / 10
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
EUVD-reported EPSS: 0.0000
Vendors: LimeSurvey
Products: LimeSurvey (7.0.14)
Aliases: GHSA-cjg2-mvj3-g74m

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

EUVD references (3)

Affected products (1)

Vendor	Product	Versions	Platforms
LimeSurvey	LimeSurvey	`7.0.14` (affected)	Windows, MacOS, Linux

Vendor references (3)

References embedded in the original CVE record by the assigning CNA.

https://fluidattacks.com/advisories/alone third-party-advisory
https://github.com/LimeSurvey/LimeSurvey product
https://github.com/LimeSurvey/LimeSurvey/commit/c96db8093e852eb8b1a2ebbb32478d6fb34cb651 patch

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (4)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://fluidattacks.com/advisories/alone help@fluidattacks.com
https://fluidattacks.com/advisories/alone 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://github.com/LimeSurvey/LimeSurvey help@fluidattacks.com
https://github.com/LimeSurvey/LimeSurvey/commit/c96db8093e852eb8b1a2ebbb32478d6fb34cb651 help@fluidattacks.com

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CVE-2026-49975 HTTP/2 Bomb Hits nginx, Apache, Envoy, and Cloudflare

web:dailysecurityreview.com

CVE - 2026 -49975 HTTP/2 Bomb exploit achieves 5,700:1 amplification against Envoy, crashing 32 GB of server memory with a single residential connection.

2026-09-24 11:10 UTC
CVE-2026-91775 - Exploits & Severity - Feedly

web:feedly.com

CVE-2026-91775 LimeSurvey fails to safely encode attacker-controlled content from a crafted .lss survey file when displaying import warnings, resulting in XSS in the administrative interface.

2026-09-24 11:10 UTC
Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-09-24 11:10 UTC
Description of the security update for Office 2016: August 11, 2026 ...

web:support.microsoft.com

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home. (See What version of Office am I using?) How to get and install the update Method 1: Microsoft Update This update is available from Microsoft Update. When you turn on ...

2026-09-24 11:10 UTC
SAP Security Patch Day - June 2026

web:support.sap.com

SAP security Patch Day Bulletin This post shares the information on security notes that remediate vulnerabilities discovered in SAP products. SAP strongly recommends that the customer visits the support portal and applies patches on priority to protect their SAP landscape. On 9th of June 2026 , SAP security patch day saw the release of 15 new security notes.

2026-09-24 11:10 UTC
SAP Security Patch Day - May 2026

web:support.sap.com

SAP security Patch Day Bulletin This post shares the information on security notes that remediate vulnerabilities discovered in SAP products. SAP strongly recommends that the customer visits the support portal and applies patches on priority to protect their SAP landscape. On 12 th of May 2026 , SAP security patch day saw the release of 15 new security notes.

2026-09-24 11:10 UTC
Security Bulletin: IBM WebSphere Application Server is affected by ...

web:www.ibm.com

Remediation /Fixes IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR PH71756. Attention: After installing the interim fix or fixpack, please follow the additional instructions provided in the interim fix link referenced below to complete the remediation . For IBM WebSphere Application Server ...

2026-09-24 11:10 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-24 11:10 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-24 11:10 UTC
Patch Tuesday September 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's September 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-09-24 11:10 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-91775.json.

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