Cross-site scripting (XSS) vulnerability in a reachable files_pdfviewer example directory in Nextcloud with versions before 22.2.10.33, 23.0.12.29, 24.0.12.28, 25.0.13.23, 26.0.13.20, 27.1.11.20, 28.0.14.11, 29.0.16.8, 30.0.17, 31.0.10, and 32.0.1 allows attackers to execute arbitrary JavaScript in the context of a user's browser via a crafted PDF file to viewer.html. This issue is related to CVE-2024-4367, but the root cause of this Nextcloud issue is that the product exposes executable example code on a same-origin basis.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59788.json",
"cna_assigner": "mitre",
"cwe_ids": [
"CWE-749"
],
"unresolved_ranges": [
{
"extracted_events": [
{
"fixed": "22.2.10.33"
},
{
"introduced": "23"
},
{
"fixed": "23.0.12.29"
},
{
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},
{
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},
{
"introduced": "25"
},
{
"fixed": "25.0.13.23"
},
{
"introduced": "26"
},
{
"fixed": "26.0.13.20"
},
{
"introduced": "27"
},
{
"fixed": "27.1.11.20"
},
{
"introduced": "28"
},
{
"fixed": "28.0.14.11"
},
{
"introduced": "29"
},
{
"fixed": "29.0.16.8"
},
{
"introduced": "30"
},
{
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},
{
"introduced": "31"
},
{
"fixed": "31.0.10"
},
{
"introduced": "32"
},
{
"fixed": "32.0.1"
}
],
"source": "AFFECTED_FIELD"
},
{
"extracted_events": [
{
"fixed": "22.2.10.33"
},
{
"introduced": "23"
},
{
"fixed": "23.0.12.29"
},
{
"introduced": "24"
},
{
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},
{
"introduced": "25"
},
{
"fixed": "25.0.13.23"
},
{
"introduced": "26"
},
{
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},
{
"introduced": "27"
},
{
"fixed": "27.1.11.20"
},
{
"introduced": "28"
},
{
"fixed": "28.0.14.11"
},
{
"introduced": "29"
},
{
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{
"introduced": "30"
},
{
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},
{
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},
{
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},
{
"introduced": "32"
},
{
"fixed": "32.0.1"
}
],
"source": "CPE_FIELD"
},
{
"extracted_events": [
{
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}
],
"source": "DESCRIPTION"
}
]
}{
"cpe": [
"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*",
"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*"
],
"extracted_events": [
{
"introduced": "30.0.0"
},
{
"fixed": "30.0.17"
},
{
"introduced": "31.0.0"
},
{
"fixed": "31.0.10"
},
{
"introduced": "32.0.0"
},
{
"fixed": "32.0.1"
}
],
"source": "CPE_RANGE"
}