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    CVE-2026-48847

    Roundcube Webmail 1.6.x before 1.6.16, and 1.7.x before 1.7.1 allows pre-authentication arbitrary file deletion via redis/memcache session poisoning bypass.

    Published:May 25, 2026
    Last Modified:May 26, 2026
    EPS:May 25, 2026
    EPSS Score:0.00057
    CVSS Score:3.7

    Affected Products

    Vendor
    Roundcube
    Product
    Webmail

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-75006 (CVSS 5.8) — In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, insufficient Cascading Style Sheets (CSS) sanitizat…
    CVE-2026-75004 (CVSS 4.3) — In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, improper rule name quoting could lead to managesiev…
    CVE-2026-75003 (CVSS 5.8) — In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, an unclosed url() in a FuncIRI attribute of an SVG …
    CVE-2026-75002 (CVSS 7.1) — In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, mail search and LITERAL+ byte-count desynchronizati…
    CVE-2026-75000 (CVSS 5.8) — In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, improper HTML/CSS sanitization of the SVG animate "…
    CVE-2026-74999 (CVSS 5.4) — In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the "Add to address book" action was subject to sto…
    CVE-2026-74998 (CVSS 7.2) — In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, responses from the CSS (Cascading Style Sheets) pro…
    CVE-2026-74997 (CVSS 8.8) — In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the cmd_learn driver of the markasjunk plugin is su…

    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