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Fencer Intel
high 8.8

CVE-2020-11561 json

In NCH Express Invoice 7.25, an authenticated low-privilege user can enter a crafted URL to access higher-privileged functionalities such a…

published 6y ago modified 4mo ago also EUVD-2020-3912

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

In NCH Express Invoice 7.25, an authenticated low-privilege user can enter a crafted URL to access higher-privileged functionalities such as the "Add New Item" screen.

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Exploit prediction

2.21% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • tejaspingulkar.blogspot.com https://tejaspingulkar.blogspot.com/2020/03/cve-cve-2020-11561-title-escalation-via.html referenced PoC, tagged "exploit" by a source, unverified
  • youtu.be https://youtu.be/-i2KtBgO3Kw referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness

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.