Nextcloud talk allows participants to blindly delete poll drafts of other users by ID_CVE-2025-66556

{
    "lastseen": "",
    "description": "Nextcloud talk is a video & audio conferencing app for Nextcloud. Prior to 20.1.8 and 21.1.2, a participant with chat permissions was able to delete poll drafts of other participants within the conversation based on their numeric ID. This vulnerability is fixed in 20.1.8 and 21.1.2.",
    "published": "2025-12-05T17:56:44.463Z",
    "modified": "2025-12-05T18:09:34.326Z",
    "type": "cve",
    "title": "Nextcloud talk allows participants to blindly delete poll drafts of other users by ID",
    "source": "GitHub_M",
    "references": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-pr9f-vqgg-m2jh\nhttps://github.com/nextcloud/spreed/pull/15532\nhttps://github.com/nextcloud/spreed/commit/bd68e80d1dea98d84c1d621c2c681238cf041725\nhttps://hackerone.com/reports/3247386",
    "id": "CVE-2025-66556",
    "bulletinFamily": "",
    "cwe": [
        "CWE-639"
    ],
    "cvelist": null,
    "sourceData": "nextcloud security-advisories < 20.1.8\nnextcloud security-advisories >= 21.0.0-beta.1, < 21.1.2",
    "sourceHref": "",
    "cvss": {
        "score": 3.5,
        "severity": "LOW",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "security-advisories",
    "version": "< 20.1.8",
    "vendor": "nextcloud",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}