CVE-2023-47320

Broken access control in Silverpeas

8.1 HighFix available

Silverpeas Core 6.3.1 is vulnerable to Incorrect Access Control. An attacker with low privileges is able to execute the administrator-only function of putting the application in "Maintenance Mode" due to broken access control. This makes the application unavailable to all users. This affects Silverpeas Core 6.3.1 and below.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: High

Exploit likelihood

0.72%Up 0.7 points since Dec 14, 2023

What each source reports

NVD Score used 8.1

Record: CVE-2023-47320
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness: CWE-863
Updated: 2026-11-02

CVE List 8.1

Record: CVE-2023-47320
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness: CWE-863
Updated: 2026-11-02

EUVDEUVD-2023-3313 8.1

Record: EUVD-2023-3313
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-whgv-6j78-5rh2 No score

Broken access control in Silverpeas

Record: GHSA-whgv-6j78-5rh2
Weakness: CWE-284
Updated: 2026-11-02

OSV 8.1

Record: CVE-2023-47320
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Updated: 2026-11-02

OSVGHSA-whgv-6j78-5rh2 No score

Broken access control in Silverpeas

Record: GHSA-whgv-6j78-5rh2
Weakness: CWE-284
Updated: 2026-11-02

Affected products

silverpeas

Affected packages

Affected packages
Package	Affected	Fixed
`org.silverpeas.core:silverpeas-core-war` Maven	before 6.3.2	6.3.2
`org.silverpeas.core:silverpeas-core-web` Maven	before 6.3.2	6.3.2

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-47320 is a high vulnerability (CVSS 8.1) in Silverpeas, published December 13, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.72%, the 54th percentile. Fixed in org.silverpeas.core:silverpeas-core-war 6.3.2.