PT-2024-13990 · Onlyoffice · Onlyoffice Docs

Anton Fabricius · CVE-2023-50883 · Published 2024-09-09 · Updated 2025-07-03

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions ONLYOFFICE Docs versions prior to 8.0.1

Description The issue is related to an incorrect fix for a previous problem, which allows for Cross-Site Scripting (XSS) due to a macro being an immediately-invoked function expression (IIFE). This enables a sandbox escape by directly calling the constructor of the Function object.

Recommendations For versions prior to 8.0.1, update to version 8.0.1 or later to resolve the issue. As a temporary workaround, consider restricting the execution of macros to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2023-50883

Affected Products

Onlyoffice Docs

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/50xxx/CVE-2023-50883.json · Exploit
• 🔥 https://syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2023-027.txt · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-50883 · Security Note
• https://osv.dev/vulnerability/CVE-2023-50883 · Vendor Advisory
• https://t.me/cvenotify/127558 · Telegram Post
• https://t.me/cvedetector/5139 · Telegram Post
• https://onlyoffice.com · Note
• https://t.me/cvenotify/93988 · Telegram Post
• https://twitter.com/WolfgangSesin/status/1899223438285221989 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1833278594325303719 · Twitter Post
• https://t.me/cvenotify/93989 · Telegram Post
• https://t.me/cvenotify/95452 · Telegram Post
• https://syss.de/pentest-blog/cross-site-scripting-schwachstelle-in-onlyoffice-docs-syss-2023-027 · Note
• https://t.me/cvedetector/5134 · Telegram Post
• https://t.me/cvenotify/93949 · Telegram Post