Vulnerability Details : CVE-2020-11535
An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit XML injection to enter an attacker-controlled parameter into the x2t binary, to rewrite this binary and/or libxcb.so.1, and execute code on a victim's server.
Vulnerability category: Execute code
Products affected by CVE-2020-11535
- cpe:2.3:a:onlyoffice:document_server:5.5.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-11535
0.48%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 76 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-11535
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-11535
-
The product does not properly neutralize special elements that are used in XML, allowing attackers to modify the syntax, content, or commands of the XML before it is processed by an end system.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-11535
-
https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda5050e323f6a0
Multiple vulnerabilities in ONLYOFFICE Document Server 5.5.0. · GitHubThird Party Advisory
-
https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#551
DocumentServer/CHANGELOG.md at master · ONLYOFFICE/DocumentServer · GitHubRelease Notes;Third Party Advisory
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