ONLYOFFICE Docs (DocumentServer) - Reflected Cross-Site Scripting

ONLYOFFICE Docs DocumentServer = 8.3.1 contains a reflected XSS caused by improper sanitization of crafted HTTP POST requests via the WOPI protocol, letting attackers inject malicious scripts reflected in HTML response, exploit requires crafted POST requests. id: CVE-2025-5301 info: name:...

CVE-2026-110652

ONLYOFFICE DocumentServer before 10.0.0 contains an unauthenticated server-side request forgery vulnerability in the /downloadfile/:docid endpoint that allows remote attackers to bypass the private-IP request-filtering-agent by exploiting the isInJwtToken flag when JWT verification is disabled in...

CVE-2026-110652 ONLYOFFICE DocumentServer before 10.0.0 SSRF via downloadfile isInJwtToken Bypass

ONLYOFFICE DocumentServer before 10.0.0 contains an unauthenticated server-side request forgery vulnerability in the /downloadfile/:docid endpoint that allows remote attackers to bypass the private-IP request-filtering-agent by exploiting the isInJwtToken flag when JWT verification is disabled in...

EUVD-2026-101034

ONLYOFFICE DocumentServer before 10.0.0 contains an unauthenticated server-side request forgery vulnerability in the /downloadfile/:docid endpoint that allows remote attackers to bypass the private-IP request-filtering-agent by exploiting the isInJwtToken flag when JWT verification is disabled in...

CVE-2026-110652 ONLYOFFICE DocumentServer before 10.0.0 SSRF via downloadfile isInJwtToken Bypass

ONLYOFFICE DocumentServer before 10.0.0 contains an unauthenticated server-side request forgery vulnerability in the /downloadfile/:docid endpoint that allows remote attackers to bypass the private-IP request-filtering-agent by exploiting the isInJwtToken flag when JWT verification is disabled in...

CVE-2026-110652

ONLYOFFICE DocumentServer before version 10.0.0 is vulnerable to an unauthenticated Server-Side Request Forgery (SSRF) in the /downloadfile/:docid endpoint. The vulnerability occurs when JWT verification is disabled in the default configuration, allowing attackers to exploit the isInJwtToken flag...

CVE-2026-110652 ONLYOFFICE DocumentServer before 10.0.0 SSRF via downloadfile isInJwtToken Bypass

ONLYOFFICE DocumentServer before 10.0.0 contains an unauthenticated server-side request forgery vulnerability in the /downloadfile/:docid endpoint that allows remote attackers to bypass the private-IP request-filtering-agent by exploiting the isInJwtToken flag when JWT verification is disabled in...

CVE-2026-110652: Server-Side Request Forgery (SSRF)

ONLYOFFICE DocumentServer before 10.0.0 contains an unauthenticated server-side request forgery vulnerability in the /downloadfile/:docid endpoint that allows remote attackers to bypass the private-IP request-filtering-agent by exploiting the isInJwtToken flag when JWT verification is disabled in...

Office Online Package ONLYOFFICE Docs Path Traversal

The vulnerability of the office online package ONLYOFFICE Docs DocumentServer is related to incorrect restrictions on the path to the catalog. Exploiting this vulnerability allows a malicious actor to execute arbitrary code remotely...

EUVD-2026-23199

ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion via pictFmla.cbBufInCtlStm and other vectors, leading to an information leak and ASLR bypass...

CVE-2026-41034

ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion via pictFmla.cbBufInCtlStm and other vectors, leading to an information leak and ASLR bypass...

CVE-2026-41034

ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion via pictFmla.cbBufInCtlStm and other vectors, leading to an information leak and ASLR bypass...

CVE-2026-41034

ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion via pictFmla.cbBufInCtlStm and other vectors, leading to an information leak and ASLR bypass...

CVE-2026-41034

ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion via pictFmla.cbBufInCtlStm and other vectors, leading to an information leak and ASLR bypass...

CVE-2026-41034

ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion via pictFmla.cbBufInCtlStm and other vectors, leading to an information leak and ASLR bypass...

CVE-2026-41034

ONLYOFFICE DocumentServer prior to 9.3.0 contains an untrusted pointer dereference in XLS processing/conversion (via pictFmla.cbBufInCtlStm and related vectors), causing information leakage and an ASLR bypass. Affected product: ONLYOFFICE DocumentServer. Root cause: untrusted pointer dereference ...

PT-2026-33272

ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion via pictFmla.cbBufInCtlStm and other vectors, leading to an information leak and ASLR bypass...

DocumentServer security vulnerabilities

DocumentServer is an open-source online collaboration suite developed by ONLYOFFICE. It supports real-time collaborative editing of documents, spreadsheets, presentations, and other formats. Versions of DocumentServer prior to 9.3.0 contained security vulnerabilities. These vulnerabilities stemme...

CVE-2026-41034: Out-of-bounds Read

ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion via pictFmla.cbBufInCtlStm and other vectors, leading to an information leak and ASLR bypass...

Office Online Package XSS

The vulnerability of the office online package ONLYOFFICE Docs DocumentServer is related to the lack of measures taken to protect the structure of the web page. Exploiting this vulnerability allows a malicious actor to perform cross-site scripting attacks remotely...