{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-23656",
        "STATE": "PUBLIC",
        "TITLE": "Cross-site scripting vulnerability in Zulip Server"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "zulip",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": ">= 2021-06-03, < 2022-03-01"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "zulip"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Zulip is an open source team chat app. The `main` development branch of Zulip Server from June 2021 and later is vulnerable to a cross-site scripting vulnerability on the recent topics page. An attacker could maliciously craft a full name for their account and send messages to a topic with several participants; a victim who then opens an overflow tooltip including this full name on the recent topics page could trigger execution of JavaScript code controlled by the attacker. Users running a Zulip server from the main branch should upgrade from main (2022-03-01 or later) again to deploy this fix."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/zulip/zulip/security/advisories/GHSA-fc77-h3jc-6mfv",
                "refsource": "CONFIRM",
                "url": "https://github.com/zulip/zulip/security/advisories/GHSA-fc77-h3jc-6mfv"
            },
            {
                "name": "https://github.com/zulip/zulip/commit/e090027adcbf62737d5b1f83a9618a9500a49321",
                "refsource": "MISC",
                "url": "https://github.com/zulip/zulip/commit/e090027adcbf62737d5b1f83a9618a9500a49321"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-fc77-h3jc-6mfv",
        "discovery": "UNKNOWN"
    }
}