Vulnerability Intelligence Report
CVE-2021-25830
A file extension handling issue was found in [core] module of ONLYOFFICE DocumentServer v4.2.0.236-v5.6.4.13. An attacker must request the conversion of the crafted file from DOCT into DOCX format. Using the chain of two other bugs related to improper string handling, an attacker can achieve remote code execution on DocumentServer.
No Active Exploit Signals
CVSS Base Score
9.8
CRITICAL
EPSS Probability:11.76%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
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Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| onlyoffice | document_server | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
11.763%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2021-01-22T00:00:00 |
| Published | 2021-03-01T15:07:38 |
| Last Updated | 2024-08-03T20:11:28 |
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