# CVE-2020-26565: Code injection in n/a

> Attacker can inject Expression Language to retrieve sensitive server information from the Opinio web application.

- **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:** No
- **Published:** 31 Jul 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-q6h6-58j2-2f5m

## What is CVE-2020-26565?

CVE-2020-26565 is a high-severity code injection vulnerability in n/a, published on 31 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

ObjectPlanet Opinio before 7.14 allows Expression Language Injection via the admin/permissionList.do from parameter. This can be used to retrieve possibly sensitive serverInfo data.

Weakness: CWE-917 (Improper Neutralization of Special Elements used in an Expression Language Statement)

## Which versions are affected by CVE-2020-26565?

It affects 1 product.


Products: Objectplanet Opinio.

## How do I fix CVE-2020-26565?

No fix has been published for CVE-2020-26565 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-26565 being exploited?

There is no known exploitation of CVE-2020-26565 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2023-4472](https://insights.sbomify.com/CVE-2023-4472/): Cryptographically weak PRNG in Opinio 7.22 (critical 9.8)
- [CVE-2020-26806](https://insights.sbomify.com/CVE-2020-26806/): File upload in n/a (high 8.8)
- [CVE-2020-26564](https://insights.sbomify.com/CVE-2020-26564/): XML external entity in n/a (medium 6.5)
- [CVE-2020-26563](https://insights.sbomify.com/CVE-2020-26563/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2017-10798](https://insights.sbomify.com/CVE-2017-10798/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-26565 and fix it if it is affected.

What it is: CVE-2020-26565 is a high-severity code injection vulnerability in n/a, published on 31 Jul 2021. 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-2020-26565 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-2020-26565/ (Markdown: https://insights.sbomify.com/CVE-2020-26565/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-26565
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-26565
- OSV: https://osv.dev/vulnerability/CVE-2020-26565

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-26565/
Summaries are generated and may contain mistakes; the official description above is the record.