CVE-2019-9853CWE-116

Insufficient URL decoding flaw in categorizing macro location

published September 27, 2019

CVSS
—
EPSS
3%
Percentile
87.6
In the wild
Unconfirmed
What it is

LibreOffice documents can contain macros. The execution of those macros is controlled by the document security settings, typically execution of macros are blocked by default. A URL decoding flaw existed in how the urls to the macros within the document were processed and categorized, resulting in the possibility to construct a document where macro execution bypassed the security settings. The documents were correctly detected as containing macros, and prompted the user to their existence within the documents, but macros within the document were subsequently not controlled by the security settings allowing arbitrary macro execution This issue affects: LibreOffice 6.2 series versions prior to 6.2.7; LibreOffice 6.3 series versions prior to 6.3.1.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03081 · 87.6th percentile
Weakness
CWE-116 · Improper Encoding or Escaping of Output
Published
2019-09-27T15:07Z
EPSS history
Timeline
  • 27 SEP 15:07Z
    Insufficient URL decoding flaw in categorizing macro location
    cvelistv5