CVE-2020-16956

Microsoft Dynamics 365 (On-Premise) Cross Site Scripting Vulnerability

Medium · published October 16, 2020

CVSS v3.1
5.4
EPSS
1%
Percentile
72.9
In the wild
Unconfirmed
What it is

<p>A cross site scripting vulnerability exists when Microsoft Dynamics 365 (on-premises) does not properly sanitize a specially crafted web request to an affected Dynamics server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected Dynamics server.</p>

<p>The attacker who successfully exploited the vulnerability could then perform cross-site scripting attacks on affected systems and run script in the security context of the current authenticated user. These attacks could allow the attacker to read content that the attacker is not authorized to read, use the victim's identity to take actions within Dynamics Server on behalf of the user, such as change permissions and delete content, and inject malicious content in the browser of the user.</p>

<p>The security update addresses the vulnerability by helping to ensure that Dynamics Server properly sanitizes web requests.</p>

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.01432 · 72.9th percentile
Published
2020-10-16T22:18Z
EPSS history
Timeline
  • 16 OCT 22:18Z
    Microsoft Dynamics 365 (On-Premise) Cross Site Scripting Vulnerability
    cvelistv5