# CVE-2025-40645: Exposure of sensitive information in Viday

> An unauthenticated attacker can obtain sensitive customer information by sending a crafted HTTP GET request to the clients API endpoint.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Oct 2025
- **Updated:** 2 Oct 2025
- **Also known as:** GHSA-h2hv-xmr8-g377

## What is CVE-2025-40645?

CVE-2025-40645 is a high-severity vulnerability in ViDay, published on 2 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Exposure of sensitive information in Viday. This vulnerability could allow an unauthenticated attacker to obtain sensitive information about customers by sending an HTTP GET request to “/api/reserva/web/clients” using the “phone” parameter.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2025-40645?


## How do I fix CVE-2025-40645?

No fix has been published for CVE-2025-40645 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-40645 being exploited?

There is no known exploitation of CVE-2025-40645 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-40645 and fix it if it is affected.

What it is: CVE-2025-40645 is a high-severity vulnerability in ViDay, published on 2 Oct 2025. 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-2025-40645 in the wild and no public exploit code.

Affected product: ViDay. 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-2025-40645/ (Markdown: https://insights.sbomify.com/CVE-2025-40645/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-40645
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-40645
- OSV: https://osv.dev/vulnerability/CVE-2025-40645

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-40645/
Summaries are generated and may contain mistakes; the official description above is the record.