CVE-2026-63107

LimeSurvey SSRF via REST API Survey Template Host Header

Published: Jul 20, 2026Updated: Jul 23, 2026 Sources: CVE List NVDCWE-918

7.7HIGH

Description

LimeSurvey through 6.17.10 and 7.0.4 contains a server-side request forgery vulnerability in the REST API survey template endpoint that allows authenticated users to cause the server to issue arbitrary HTTP requests by supplying a manipulated Host header. Attackers can exploit the unsanitized use of the HTTP Host header in the getTemplateData() function to reach internal network services, cloud metadata endpoints, and extract sensitive credentials such as IAM tokens from instance metadata services.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:CScope

Changed

Impact

C:HConfidentiality

High

I:NIntegrity

None

A:NAvailability

None

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Weaknesses

CWE-918

Affected Products

LimeSurvey

oss-project

LimeSurveyOn-premWeb App

Web & CMS Plugins / cms-core

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Command and Control

Initial Access

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References

https://github.com/geo-chen/oss/blob/main/limesurvey.md

github.com

https://www.vulncheck.com/advisories/limesurvey-ssrf-via-rest-api-survey-template-host-header

vulncheck.com

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