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Fencer Vulns
medium 5.4

CVE-2023-21573 json

Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability

published 2023-02-14 3 y ago modified 2026-08-19 2 mo ago also EUVD-2023-25740

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability

Patch / fix

  • Microsoft Microsoft Dynamics 365 (on-premises) version 9.0 9.0.45.11
  • Microsoft Microsoft Dynamics 365 (on-premises) version 9.1 9.1.16.20

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

  • Microsoft Microsoft Dynamics 365 (on-premises) version 9.0
  • Microsoft Microsoft Dynamics 365 (on-premises) version 9.1

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.