CVE-2020-11561Public exploitNetwork attack vector

Authenticated privilege escalation via crafted Web Access URL

Published Apr 7, 2020 · Updated Aug 4, 2024

Privilege escalation in NCH Express Invoice 7.25 allows remote authenticated users to access higher-privileged web functions. The Web Access interface accepts a directly requested crafted URL without enforcing the low-privilege account's authorization on the target page. A low-privilege Web Access account is required; exploitation exposes functions such as Add New Item and permits unauthorized item changes.

CVSS severity8.8
High
EPSS probability2.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in NCH Express Invoice 7.25 allows remote authenticated users to access higher-privileged web functions. The Web Access interface accepts a directly requested crafted URL without enforcing the low-privilege account's authorization on the target page. A low-privilege Web Access account is required; exploitation exposes functions such as Add New Item and permits unauthorized item changes.

The record

CVE
CVE-2020-11561
Published
Apr 7, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-425, CAPEC-87, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 7, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-425Direct Request ('Forced Browsing')
CAPEC-87Forceful Browsing
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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