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Fencer Intel
high 8.8

CVE-2019-1302 json

Elevation of privilege in ASP.NET Core

published 7y ago modified 4mo ago also GHSA-xr8f-59pp-rxxh , EUVD-2022-5851

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.8%
EPSS 4.8% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

An elevation of privilege vulnerability exists when a ASP.NET Core web application, created using vulnerable project templates, fails to properly sanitize web requests, aka 'ASP.NET Core Elevation Of Privilege Vulnerability'.

Patch / fix

  • nuget Microsoft.AspNetCore.SpaServices 2.1.13, 2.2.7

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Exploit prediction

4.85% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected packages

ecosystem package affected fixed in
nuget Microsoft.AspNetCore.SpaServices
>=2.2.0, <2.2.7
>=2.1.0, <2.1.13
2.2.7
2.1.13

Affected products

  • Microsoft ASP.NET Core

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel 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.