Onlyoffice Document Server vulnerabilities

CVE-2021-25833 [CRITICAL] CWE-22 CVE-2021-25833: A file extension handling issue was found in [server] module of ONLYOFFICE DocumentServer v4.2.0.71- A file extension handling issue was found in [server] module of ONLYOFFICE DocumentServer v4.2.0.71-v5.6.0.21. The file extension is controlled by an attacker through the request data and leads to arbitrary file overwriting. Using this vulnerability, a remote attacker can obtain remote code execution on DocumentServer.

CVE-2021-25830 [CRITICAL] CVE-2021-25830: A file extension handling issue was found in [core] module of ONLYOFFICE DocumentServer v4.2.0.236-v 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.

CVE-2021-25832 [CRITICAL] CWE-787 CVE-2021-25832: A heap buffer overflow vulnerability inside of BMP image processing was found at [core] module of ON A heap buffer overflow vulnerability inside of BMP image processing was found at [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v6.0.0. Using this vulnerability, an attacker is able to gain remote code executions on DocumentServer.

CVE-2021-3199 [CRITICAL] CWE-22 CVE-2021-3199: Directory traversal with remote code execution can occur in /upload in ONLYOFFICE Document Server be Directory traversal with remote code execution can occur in /upload in ONLYOFFICE Document Server before 5.6.3, when JWT is used, via a /.. sequence in an image upload parameter.

CVE-2021-25831 [CRITICAL] CVE-2021-25831: A file extension handling issue was found in [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v5. A file extension handling issue was found in [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v5.6.3. An attacker must request the conversion of the crafted file from PPTT into PPTX format. Using the chain of two other bugs related to improper string handling, a remote attacker can obtain remote code execution on DocumentServer.

CVE-2022-29776 [CRITICAL] CWE-787 CVE-2022-29776: Onlyoffice Document Server v6.0.0 and below and Core 6.1.0.26 and below were discovered to contain a Onlyoffice Document Server v6.0.0 and below and Core 6.1.0.26 and below were discovered to contain a stack overflow via the component DesktopEditor/common/File.cpp.

CVE-2020-11537 [CRITICAL] CWE-89 CVE-2020-11537: A SQL Injection issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can execute ar A SQL Injection issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can execute arbitrary SQL queries via injection to DocID parameter of Websocket API.

CVE-2020-11536 [CRITICAL] CWE-20 CVE-2020-11536: An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit the unzip function to rewrite a binary and remotely execute code on a victim's server.

CVE-2020-11535 [CRITICAL] CWE-91 CVE-2020-11535: An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx 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.

CVE-2023-30187 [CRITICAL] CWE-787 CVE-2023-30187: An out of bounds memory access vulnerability in ONLYOFFICE DocumentServer 4.0.3 through 7.3.2 allows An out of bounds memory access vulnerability in ONLYOFFICE DocumentServer 4.0.3 through 7.3.2 allows remote attackers to run arbitrary code via crafted JavaScript file.

CVE-2022-29777 [CRITICAL] CWE-787 CVE-2022-29777: Onlyoffice Document Server v6.0.0 and below and Core 6.1.0.26 and below were discovered to contain a Onlyoffice Document Server v6.0.0 and below and Core 6.1.0.26 and below were discovered to contain a heap overflow via the component DesktopEditor/fontengine/fontconverter/FontFileBase.h.

CVE-2020-11534 [CRITICAL] CWE-20 CVE-2020-11534: An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit the NSFileDownloader function to pass parameters to a binary (such as curl or wget) and remotely execute code on a victim's server.

CVE-2023-30186 [CRITICAL] CWE-416 CVE-2023-30186: A use after free issue discovered in ONLYOFFICE DocumentServer 4.0.3 through 7.3.2 allows remote att A use after free issue discovered in ONLYOFFICE DocumentServer 4.0.3 through 7.3.2 allows remote attackers to run arbitrary code via crafted JavaScript file.

CVE-2021-25829 [HIGH] CVE-2021-25829: An improper binary stream data handling issue was found in the [core] module of ONLYOFFICE DocumentS An improper binary stream data handling issue was found in the [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v5.6.3. Using this bug, an attacker is able to produce a denial of service attack that can eventually shut down the target server.

CVE-2022-48422 [HIGH] CWE-427 CVE-2022-48422: ONLYOFFICE Docs through 7.3 on certain Linux distributions allows local users to gain privileges via ONLYOFFICE Docs through 7.3 on certain Linux distributions allows local users to gain privileges via a Trojan horse libgcc_s.so.1 in the current working directory, which may be any directory in which an ONLYOFFICE document is located.

CVE-2023-46988 [MEDIUM] CWE-22 CVE-2023-46988: Path Traversal vulnerability in ONLYOFFICE Document Server before v8.0.1 allows a remote attacker to Path Traversal vulnerability in ONLYOFFICE Document Server before v8.0.1 allows a remote attacker to copy arbitrary files by manipulating the fileExt parameter in the /example/editor endpoint, leading to unauthorized access to sensitive files and potential Denial of Service (DoS).

CVE-2023-30188 [HIGH] CWE-835 CVE-2023-30188: Memory Exhaustion vulnerability in ONLYOFFICE Document Server 4.0.3 through 7.3.2 allows remote atta Memory Exhaustion vulnerability in ONLYOFFICE Document Server 4.0.3 through 7.3.2 allows remote attackers to cause a denial of service via crafted JavaScript file.

CVE-2025-68917 [MEDIUM] CWE-79 CVE-2025-68917: ONLYOFFICE Docs before 9.2.1 allows XSS in the textarea of the comment editing form. This is related ONLYOFFICE Docs before 9.2.1 allows XSS in the textarea of the comment editing form. This is related to DocumentServer.

CVE-2022-24229 [MEDIUM] CWE-79 CVE-2022-24229: A cross-site scripting (XSS) vulnerability in ONLYOFFICE Document Server Example before v7.0.0 allow A cross-site scripting (XSS) vulnerability in ONLYOFFICE Document Server Example before v7.0.0 allows remote attackers inject arbitrary HTML or JavaScript through /example/editor.

CVE-2023-50883 [MEDIUM] CVE-2023-50883: ONLYOFFICE Docs before 8.0.1 allows XSS because a macro is an immediately-invoked function expressio ONLYOFFICE Docs before 8.0.1 allows XSS because a macro is an immediately-invoked function expression (IIFE), and therefore a sandbox escape is possible by directly calling the constructor of the Function object. NOTE: this issue exists because of an incorrect fix for CVE-2021-43446.