# CVE-2023-31292: Auth bypass in n/a

> Local attackers can bypass authentication and access sensitive information in Sesami CPTO via a back button refresh attack.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Dec 2023
- **Updated:** 17 Apr 2025
- **Also known as:** GHSA-xch8-frxx-v8q6

## What is CVE-2023-31292?

CVE-2023-31292 is a medium-severity authentication bypass vulnerability in n/a, published on 29 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An issue was discovered in Sesami Cash Point & Transport Optimizer (CPTO) 6.3.8.6 (#718), allows local attackers to obtain sensitive information and bypass authentication via "Back Button Refresh" attack.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2023-31292?

It affects 1 product.


Products: Sesami Cash Point \& Transport Optimizer.

## How do I fix CVE-2023-31292?

No fix has been published for CVE-2023-31292 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-31292 being exploited?

There is no known exploitation of CVE-2023-31292 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2023-31294](https://insights.sbomify.com/CVE-2023-31294/): Other in n/a (high 7.5)
- [CVE-2023-31295](https://insights.sbomify.com/CVE-2023-31295/): Other in n/a (high 7.5)
- [CVE-2023-31300](https://insights.sbomify.com/CVE-2023-31300/): Information disclosure in n/a (high 7.5)
- [CVE-2023-31299](https://insights.sbomify.com/CVE-2023-31299/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2023-31301](https://insights.sbomify.com/CVE-2023-31301/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-31292 and fix it if it is affected.

What it is: CVE-2023-31292 is a medium-severity authentication bypass vulnerability in n/a, published on 29 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-31292 in the wild and no public exploit code.

Affected product: n/a. 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-2023-31292/ (Markdown: https://insights.sbomify.com/CVE-2023-31292/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-31292
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-31292
- OSV: https://osv.dev/vulnerability/CVE-2023-31292

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-31292/
Summaries are generated and may contain mistakes; the official description above is the record.