CVE-2019-9850

Insufficient url validation allowing LibreLogo script execution

CRITICAL
9.8
CVSS Score
Published: August 15, 2019 at 09:30 PM UTC
Updated: June 17, 2026 at 02:44 AM UTC
6 products affected across 6 vendorsDebian LinuxFedoraUbuntu Linux

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Severity
CRITICAL9.8
Exploit prediction
EPSS 3%

Description

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. LibreOffice also has a feature where documents can specify that pre-installed scripts can be executed on various document script events such as mouse-over, etc. Protection was added, to address CVE-2019-9848, to block calling LibreLogo from script event handers. However an insufficient url validation vulnerability in LibreOffice allowed malicious to bypass that protection and again trigger calling LibreLogo from script event handlers. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 6.2.6
Affected range stops below 6.2.6, so it looks safe — our inference, not a vendor statement
v < 6.2.6
Affected range stops below 6.2.6, so it looks safe — our inference, not a vendor statement

References (9)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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