# CVE-2018-7500: Privilege escalation in OSIsoft PI Web API

> Attackers can escalate privileges to access the PI System via the service account in OSIsoft PI Web API.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Mar 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-qvpm-fp2p-7wm3

## What is CVE-2018-7500?

CVE-2018-7500 is a critical vulnerability in OSIsoft PI Web API, published on 14 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A Permissions, Privileges, and Access Controls issue was discovered in OSIsoft PI Web API versions 2017 R2 and prior. Privileges may be escalated, giving attackers access to the PI System via the service account.

Weakness: CWE-264

## Which versions are affected by CVE-2018-7500?

It affects 2 products.


Products: Osisoft Pi Vision, Osisoft Pi Web Api.

## How do I fix CVE-2018-7500?

No fix has been published for CVE-2018-7500 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-7500 being exploited?

There is no known exploitation of CVE-2018-7500 in the wild and no public exploit code.

## Other vulnerabilities in OSIsoft PI Web API

- [CVE-2019-18271](https://insights.sbomify.com/CVE-2019-18271/): Cross-site request forgery in OSIsoft PI Vision (high 8.8)
- [CVE-2020-25163](https://insights.sbomify.com/CVE-2020-25163/): OSIsoft PI Vision Cross-site Scripting (high 7.7)
- [CVE-2021-43551](https://insights.sbomify.com/CVE-2021-43551/): OSIsoft PI Vision (medium 6.5)
- [CVE-2020-10643](https://insights.sbomify.com/CVE-2020-10643/): OSIsoft PI System (medium 6.5)
- [CVE-2019-18275](https://insights.sbomify.com/CVE-2019-18275/): Missing authorization in OSIsoft PI Vision (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-7500 and fix it if it is affected.

What it is: CVE-2018-7500 is a critical vulnerability in OSIsoft PI Web API, published on 14 Mar 2018. 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-2018-7500 in the wild and no public exploit code.

Affected product: OSIsoft PI Web API. 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-2018-7500/ (Markdown: https://insights.sbomify.com/CVE-2018-7500/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-7500
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-7500
- OSV: https://osv.dev/vulnerability/CVE-2018-7500

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-7500/
Summaries are generated and may contain mistakes; the official description above is the record.