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    CVE-2025-56218

    An arbitrary file upload vulnerability in SigningHub v8.6.8 allows attackers to execute arbitrary code via uploading a crafted PDF file.

    Published:Oct 17, 2025
    Last Modified:Oct 27, 2025
    EPS:Oct 17, 2025
    EPSS Score:0.0008
    CVSS Score:9.8

    Affected Products

    Vendor
    Ascertia
    Product
    Signinghub

    Exploits

    https://github.com/saykino/CVE-2025-56218

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs

    Related CVEs

    CVE-2025-61166 (CVSS 6.1) — An open redirect in Ascertia SigningHub User v10.0 allows attackers to redirect users to a malicious site via …
    CVE-2025-54321 (CVSS 9.8) — In Ascertia SigningHub through 8.6.8, there is a lack of rate limiting on the reset password function, leading…
    CVE-2025-54320 (CVSS 4.3) — In Ascertia SigningHub through 8.6.8, there is a lack of rate limiting on the invite user function, leading to…
    CVE-2025-56223 (CVSS 7.5) — A lack of rate limiting in the component /Home/UploadStreamDocument of SigningHub v8.6.8 allows attackers to c…
    CVE-2025-56219 (CVSS 7.1) — Incorrect access control in SigningHub v8.6.8 allows attackers to arbitrarily add user accounts without any ra…
    CVE-2025-56224 (CVSS 8.1) — A lack of rate limiting in the One-Time Password (OTP) verification endpoint of SigningHub v8.6.8 allows attac…
    CVE-2025-56221 (CVSS 9.8) — A lack of rate limiting in the login mechanism of SigningHub v8.6.8 allows attackers to bypass authentication …

    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