CVE-2023-35154Public exploitNetwork attack vector

Unauthenticated account activation via credential flag reset

Published Jun 23, 2023 · Updated Nov 7, 2024

Improper authentication in Knowage Server 6.0.0 through 8.1.7 allows remote attackers to activate newly registered accounts. The anonymous credential endpoint clears the flgPwdBlocked attribute after a valid password change without checking whether email activation occurred. Exploitation requires self-registration and knowledge of the undisplayed endpoint; success grants only normal-user access.

CVSS severity7.2
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Knowage Server 6.0.0 through 8.1.7 allows remote attackers to activate newly registered accounts. The anonymous credential endpoint clears the flgPwdBlocked attribute after a valid password change without checking whether email activation occurred. Exploitation requires self-registration and knowledge of the undisplayed endpoint; success grants only normal-user access.

The record

CVE
CVE-2023-35154
Published
Jun 23, 2023
Updated
Nov 7, 2024
Vendor
Knowage Labs
Product
Knowage Server
Classifications
CWE-287, T1136.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 7, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <8.1.8
  2. Affected versionversion=< 8.1.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Knowage Labs · Knowage Serverversion=0 <8.1.8; version=< 8.1.8

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
7.2GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
T1136.001Create Account: Local Account

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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