Chamilo LMS has Reflected XSS via Unsanitized http_build_query() in Exercise Question List Pagination_CVE-2026-32893

{
    "lastseen": "",
    "description": "Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, a Reflected Cross-Site Scripting (XSS) vulnerability in the exercise question list admin panel allows an attacker to execute arbitrary JavaScript in an authenticated teacher's browser. The pagination code merges all $_GET parameters via array_merge() and outputs the result via http_build_query() directly into HTML href attributes without htmlspecialchars() encoding. This vulnerability is fixed in 2.0.0-RC.3.",
    "published": "2026-04-10T17:42:24.220Z",
    "modified": "2026-04-10T17:42:24.220Z",
    "type": "cve",
    "title": "Chamilo LMS has Reflected XSS via Unsanitized http_build_query() in Exercise Question List Pagination",
    "source": "GitHub_M",
    "references": "https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-37jh-g64j-88mc\nhttps://github.com/chamilo/chamilo-lms/commit/72bc403f89b1ebb73a139f8f6cf0478857592276",
    "id": "CVE-2026-32893",
    "bulletinFamily": "",
    "cwe": [
        "CWE-79"
    ],
    "cvelist": null,
    "sourceData": "chamilo chamilo-lms >= 2.0.0-alpha.1, < 2.0.0-RC.3",
    "sourceHref": "",
    "cvss": {
        "score": 5.4,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/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": "",
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            "privilegesRequired": "",
            "userInteraction": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "chamilo-lms",
    "version": ">= 2.0.0-alpha.1, < 2.0.0-RC.3",
    "vendor": "chamilo",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
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    "ai_score": 0
}