CVE-2020-11679Public exploitNetwork attack vector

Authenticated administrator escalation via unchecked role update

Published Jun 4, 2020 · Updated Aug 4, 2024

Missing authorization in Castel NextGen DVR 1.0.0 allows remote authenticated users to grant their accounts Administrator roles. The /Administration/Users/Edit/:UserId handler accepts a crafted POST that adds role identifiers without confirming that the session belongs to an Administrator. A low-privileged Reviewer account and network access to the management interface are required; successful exploitation grants access to administrator-only functions.

CVSS severity8.8
High
EPSS probability2.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Castel NextGen DVR 1.0.0 allows remote authenticated users to grant their accounts Administrator roles. The /Administration/Users/Edit/:UserId handler accepts a crafted POST that adds role identifiers without confirming that the session belongs to an Administrator. A low-privileged Reviewer account and network access to the management interface are required; successful exploitation grants access to administrator-only functions.

The record

CVE
CVE-2020-11679
Published
Jun 4, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-862, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 4, 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

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

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-862Missing Authorization
T1098Account Manipulation

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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