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    CVE-2026-63107

    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.

    Published:Jul 20, 2026
    Last Modified:Jul 28, 2026
    EPS:Jul 20, 2026
    EPSS Score:0.00209
    CVSS Score:7.7

    Affected Products

    Vendor
    Limesurvey
    Product
    Limesurvey

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

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    CVE-2026-63360 (CVSS 7.4) — LimeSurvey Community Edition 7.0.5+260623 contains an authenticated reflected Cross-Site Scripting vulnerabili…
    CVE-2026-16809 (CVSS 7.2) — LimeSurvey Community Edition 7.0.5 contains a stored cross-site scripting vulnerability in the survey quota cr…
    CVE-2026-65930 (CVSS 4.8) — LimeSurvey Community Edition 7.0.5 contains an authenticated stored cross-site scripting vulnerability in the …
    CVE-2026-15973 (CVSS 8.4) — LimeSurvey Community Edition 7.0.5 contains a stored cross-site scripting vulnerability in the Survey Menu Ent…
    CVE-2026-18403 (CVSS 6) — LimeSurvey Community Edition 7.0.5 contains an authenticated SQL injection vulnerability in the Central Partic…
    CVE-2026-63361 (CVSS 8.5) — LimeSurvey Community Edition 7.0.5 contains an authenticated reflected cross-site scripting vulnerability in t…
    CVE-2026-50636 (CVSS 8.7) — The RemoteControl API methods invite_participants and remind_participants pass a caller-supplied token-ID arra…
    CVE-2026-50635 (CVSS 8.7) — LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validatin…
    CVE-2025-63238 (CVSS 6.1) — A Reflected Cross-Site Scripting (XSS) affects LimeSurvey versions prior to 6.15.11+250909, due to the lack of…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High