CVE-2025-59788 (GCVE-0-2025-59788)
Vulnerability from cvelistv5 – Published: 2025-12-04 00:00 – Updated: 2025-12-11 15:04
VLAI
EPSS
VEX
Summary
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.
Severity
6.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-05 17:20 UTC
CWE
- CWE-749 - Exposed Dangerous Method or Function
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Nextcloud | Nextcloud |
Affected:
0 , < 22.2.10.33
(custom)
Affected: 23 , < 23.0.12.29 (custom) Affected: 24 , < 24.0.12.28 (custom) Affected: 25 , < 25.0.13.23 (custom) Affected: 26 , < 26.0.13.20 (custom) Affected: 27 , < 27.1.11.20 (custom) Affected: 28 , < 28.0.14.11 (custom) Affected: 29 , < 29.0.16.8 (custom) Affected: 30 , < 30.0.17 (custom) Affected: 31 , < 31.0.10 (custom) Affected: 32 , < 32.0.1 (custom) cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* |
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"versionEndExcluding": "23.0.12.29",
"versionStartIncluding": "23",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:*",
"versionEndExcluding": "24.0.12.28",
"versionStartIncluding": "24",
"vulnerable": true
},
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"versionEndExcluding": "25.0.13.23",
"versionStartIncluding": "25",
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},
{
"criteria": "cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:*",
"versionEndExcluding": "26.0.13.20",
"versionStartIncluding": "26",
"vulnerable": true
},
{
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"versionEndExcluding": "29.0.16.8",
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"versionStartIncluding": "30",
"vulnerable": true
},
{
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"versionEndExcluding": "31.0.10",
"versionStartIncluding": "31",
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},
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"value": "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\u0027s 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."
}
],
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{
"url": "https://www.redteam-pentesting.de/en/advisories/rt-sa-2025-003/"
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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