# CVE-2023-47323: Missing access control in Silverpeas

> Attackers can read private messages between any users, including administrators, due to missing access control checks on message IDs.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 13 Dec 2023
- **Updated:** 9 Jul 2026
- **Also known as:** GHSA-cwh6-hm53-6w2m

## What is CVE-2023-47323?

CVE-2023-47323 is a high-severity missing authorization vulnerability in n/a, published on 13 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The notification/messaging feature of Silverpeas Core 6.3.1 does not enforce access control on the ID parameter. This allows an attacker to read all messages sent between other users; including those sent only to administrators.

## Which versions are affected by CVE-2023-47323?

4 open source packages ship an affected version, including org.silverpeas.core:silverpeas-core-api and org.silverpeas.core:silverpeas-core-web. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.silverpeas.core:silverpeas-core-api` | Maven | All versions | 6.3.2 |
| `org.silverpeas.core:silverpeas-core-api` | Maven | All versions | 6.3.2 |
| `org.silverpeas.core:silverpeas-core-web` | Maven | All versions | 6.3.2 |
| `org.silverpeas.core:silverpeas-core-web` | Maven | All versions | 6.3.2 |

Products: Silverpeas Silverpeas.

## How do I fix CVE-2023-47323?

Upgrade org.silverpeas.core:silverpeas-core-api to 6.3.2 or later.

## Is CVE-2023-47323 being exploited?

There is no known exploitation of CVE-2023-47323 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2018-19586](https://insights.sbomify.com/CVE-2018-19586/): Path traversal in n/a (critical 9.9)
- [CVE-2024-42850](https://insights.sbomify.com/CVE-2024-42850/): Silverpeas vulnerable to password complexity rule bypass (critical 9.8)
- [CVE-2024-36042](https://insights.sbomify.com/CVE-2024-36042/): Silverpeas authentication bypass (critical 9.8)
- [CVE-2023-47322](https://insights.sbomify.com/CVE-2023-47322/): Cross Site Request Forgery in Silverpeas (high 8.8)
- [CVE-2023-47326](https://insights.sbomify.com/CVE-2023-47326/): Cross Site Request Forgery in Silverpeas (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-47323 and fix it if it is affected.

What it is: CVE-2023-47323 is a high-severity missing authorization vulnerability in n/a, published on 13 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-47323 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.silverpeas.core:silverpeas-core-api (Maven): affected all versions; fixed in 6.3.2
- org.silverpeas.core:silverpeas-core-api (Maven): affected all versions; fixed in 6.3.2
- org.silverpeas.core:silverpeas-core-web (Maven): affected all versions; fixed in 6.3.2
- org.silverpeas.core:silverpeas-core-web (Maven): affected all versions; fixed in 6.3.2

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-47323/ (Markdown: https://insights.sbomify.com/CVE-2023-47323/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-47323
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-47323
- OSV: https://osv.dev/vulnerability/CVE-2023-47323

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-47323/
Summaries are generated and may contain mistakes; the official description above is the record.