CVE-2023-47320Public exploitNetwork attack vector

Service disruption via broken authorization

Published Dec 13, 2023 · Updated Jul 9, 2026

Silverpeas Core 6.3.1 and earlier contain incorrect authorization that lets remote authenticated users put the application into Maintenance Mode. The maintenance-mode function accepts a low-privilege request without enforcing its administrator-only authorization check, changing global application availability. Any authenticated account that can reach the function can interrupt service for all users, with no confidentiality impact reported.

CVSS severity8.1
High
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Silverpeas Core 6.3.1 and earlier contain incorrect authorization that lets remote authenticated users put the application into Maintenance Mode. The maintenance-mode function accepts a low-privilege request without enforcing its administrator-only authorization check, changing global application availability. Any authenticated account that can reach the function can interrupt service for all users, with no confidentiality impact reported.

The record

CVE
CVE-2023-47320
Published
Dec 13, 2023
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-863, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record 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

8.1NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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.

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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-863CWE-863 Incorrect Authorization
T1499Endpoint Denial of Service

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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