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    CVE-2022-43708

    MyBB 1.8.31 has a (issue 2 of 2) cross-site scripting (XSS) vulnerabilities in the post Attachments interface allow attackers to inject HTML by persuading the user to upload a file with specially crafted name

    Published:Nov 21, 2022
    Last Modified:Apr 29, 2025
    EPS:Nov 21, 2022
    EPSS Score:0.00113
    CVSS Score:6.1

    Affected Products

    Vendor
    Mybb
    Product
    Mybb

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-45120 (CVSS 5.4) — MyBB is free and open source forum software. Prior to 1.8.40, the calendar module does not verify private even…
    CVE-2026-47245 (CVSS 4.3) — MyBB is free and open source forum software. Prior to 1.8.40, the User CP Buddy/Ignore List component does not…
    CVE-2026-45734 (CVSS 5.3) — MyBB is free and open source forum software. Prior to 1.8.40, the built-in CAPTCHA does not consistently enfor…
    CVE-2026-45125 (CVSS 5.3) — MyBB is free and open source forum software. Prior to 1.8.40, the Email User controller does not sanitize send…
    CVE-2026-45122 (CVSS 4.3) — MyBB is free and open source forum software. Prior to 1.8.40, the calendar module does not validate moderation…
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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