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    CVE-2026-116631

    A malicious web page could open a tel link in a window that was showing a different website, causing the phone-call prompt to appear as if that site had requested the call. This vulnerability was fixed in Firefox for iOS 156.1.

    Published:Oct 26, 2026
    Last Modified:Oct 27, 2026
    EPS:Oct 26, 2026
    EPSS Score:0.00213
    CVSS Score:5.4

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox For Ios

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-111 JSON Hijacking (aka JavaScript Hijacking)
    CAPEC-141 Cache Poisoning
    CAPEC-142 DNS Cache Poisoning
    CAPEC-154 Resource Location Spoofing
    CAPEC-160 Exploit Script-Based APIs
    CAPEC-163 Spear Phishing
    CAPEC-164 Mobile Phishing
    CAPEC-173 Action Spoofing
    CAPEC-21 Exploitation of Trusted Identifiers
    CAPEC-384 Application API Message Manipulation via Man-in-the-Middle
    CAPEC-385 Transaction or Event Tampering via Application API Manipulation
    CAPEC-386 Application API Navigation Remapping
    CAPEC-387 Navigation Remapping To Propagate Malicious Content
    CAPEC-388 Application API Button Hijacking
    CAPEC-510 SaaS User Request Forgery
    CAPEC-59 Session Credential Falsification through Prediction
    CAPEC-60 Reusing Session IDs (aka Session Replay)
    CAPEC-75 Manipulating Writeable Configuration Files
    CAPEC-76 Manipulating Web Input to File System Calls
    CAPEC-89 Pharming
    CAPEC-98 Phishing

    Related CVEs

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    CVE-2026-86853 (CVSS 4.3) — A malicious webpage could repeatedly trigger external URL schemes, causing system prompts or external applicat…
    CVE-2026-81267 (CVSS 5.4) — A malicious webpage could stall a popup's cross-origin navigation after commit, causing the address bar to dis…
    CVE-2026-14906 (CVSS 5.3) — Pages with malicious titles could potentially allow saved PDF content to overwrite PDF files or bundled conten…
    CVE-2026-13356 (CVSS 6.3) — A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing…
    CVE-2026-53900 (CVSS 4.3) — Firefox for iOS preserved cookies set on the initial PDF request across cross-origin HTTP redirects in Tempora…
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    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