# CVE-2023-42787: Security feature bypass in FortiAnalyzer

> Remote attackers with low privileges can bypass client-side security checks to access privileged web consoles in FortiManager and FortiAnalyzer.

- **Severity:** Medium 6.2 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:X`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Oct 2023
- **Updated:** 12 Aug 2026
- **Also known as:** GHSA-p47r-gpqq-3w72

## What is CVE-2023-42787?

CVE-2023-42787 is a medium-severity vulnerability in Fortinet Fortianalyzer, published on 10 Oct 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A client-side enforcement of server-side security [CWE-602] vulnerability in Fortinet FortiManager version 7.4.0 and before 7.2.3 and FortiAnalyzer version 7.4.0 and before 7.2.3 may allow a remote attacker with low privileges to access a privileged web console via client side code execution.

Weakness: CWE-602 (Client-Side Enforcement of Server-Side Security)

## Which versions are affected by CVE-2023-42787?

It affects 2 products.


Products: Fortinet Fortianalyzer, Fortinet Fortimanager.

## How do I fix CVE-2023-42787?

No fix has been published for CVE-2023-42787 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-42787 being exploited?

There is no known exploitation of CVE-2023-42787 in the wild and no public exploit code.

## Other vulnerabilities in Fortinet Fortianalyzer

- [CVE-2026-24858](https://insights.sbomify.com/CVE-2026-24858/): Fortinet Multiple Products Authentication Bypass Using an Alternate Path or Channel (critical 9.4, exploited in the wild)
- [CVE-2023-25610](https://insights.sbomify.com/CVE-2023-25610/): Memory corruption in FortiAnalyzer (critical 9.3)
- [CVE-2021-32603](https://insights.sbomify.com/CVE-2021-32603/): Server-side request forgery in Fortinet FortiAnalyzer, FortiManager (high 8.8)
- [CVE-2020-12817](https://insights.sbomify.com/CVE-2020-12817/): Cross-site scripting in Fortinet FortiAnalyzer (high 8.8)
- [CVE-2024-48886](https://insights.sbomify.com/CVE-2024-48886/): Auth bypass in FortiOS (high 8.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-42787 and fix it if it is affected.

What it is: CVE-2023-42787 is a medium-severity vulnerability in Fortinet Fortianalyzer, published on 10 Oct 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-42787 in the wild and no public exploit code.

Affected product: Fortinet Fortianalyzer. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2023-42787/ (Markdown: https://insights.sbomify.com/CVE-2023-42787/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-42787
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-42787
- OSV: https://osv.dev/vulnerability/CVE-2023-42787

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-42787/
Summaries are generated and may contain mistakes; the official description above is the record.