{
    "id": "CVE-2023-43770",
    "published": "2023-09-22 06:15:10",
    "last_modified": "2026-06-17 06:26:24",
    "cvss_score": "6.1",
    "cvss_severity": "MEDIUM",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
    "cwe": "CWE-79",
    "description": "Roundcube before 1.4.14, 1.5.x before 1.5.4, and 1.6.x before 1.6.3 allows XSS via text/plain e-mail messages with crafted links because of program/lib/Roundcube/rcube_string_replacer.php behavior.",
    "epss_score": "0.63660",
    "epss_percentile": "0.99192",
    "kev": 1,
    "kev_due": "2024-03-04",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:32:45",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2024-03-04."
    },
    "products": [
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "roundcube",
            "product": "webmail"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2023-43770",
        "date_added": "2024-02-12",
        "due_date": "2024-03-04",
        "vendor": "Roundcube",
        "product": "Webmail",
        "name": "Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability",
        "ransomware": 0
    },
    "exploits": [],
    "refs_list": [
        "https://github.com/roundcube/roundcubemail/commit/e92ec206a886461245e1672d8530cc93c618a49b",
        "https://lists.debian.org/debian-lts-announce/2023/09/msg00024.html",
        "https://roundcube.net/news/2023/09/15/security-update-1.6.3-released",
        "https://github.com/roundcube/roundcubemail/commit/e92ec206a886461245e1672d8530cc93c618a49b",
        "https://lists.debian.org/debian-lts-announce/2023/09/msg00024.html",
        "https://roundcube.net/news/2023/09/15/security-update-1.6.3-released",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43770"
    ]
}