CVE-2023-50883

2024-09-0900:00:00

mitre

github.com

onlyoffice

docs

xss

vulnerability

macro

sandbox

escape

constructor

function object

incorrect fix

AI Score

6.4

Confidence

High

EPSS

0.001

Percentile

35.4%

SSVC

Exploitation

poc

Automatable

Technical Impact

partial

JSON

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.

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:onlyoffice:docs:*:*:*:*:*:*:*:*"
    ],
    "vendor": "onlyoffice",
    "product": "docs",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "8.0.1",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  }
]