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CVE-2021-28461

20
FAUCET Score

CVE-2021-28461 is a Cross-site Scripting (XSS) vulnerability affecting Microsoft Dynamics 365 Finance and Operations. With a CVSS score of 6.1 (Medium), this vulnerability requires adjacent network access and low privileges, with user interaction, to achieve high confidentiality impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog. Community discussion and media coverage are minimal, with only one mention and one article referencing it as part of a larger Patch Tuesday update.

Impacted Technologies

VendorProductVersion(s)CPE
>= 10.0.0, < 10.0.793CPE match
cpe:2.3:a:microsoft:dynamics_365_for_finance_and_operations:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:dynamics_365:-:*:*:*:*:finance_and_operations:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.7
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.32%
Probability of exploitation in next 30 days
EPSS Percentile
68.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0132 is in the 100th percentile among its peer group of 60 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Dynamics 365 for Finance and OperationsFixed in: 10.0.793
View patch

Vendor Advisories (1)

microsoft2021-May/CVE-2021-28461Important

Dynamics Finance and Operations Cross-site Scripting Vulnerability

May 11, 2021

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2021-28461
PatchVendor Advisory