# CVE-2019-25687: Pegasus CMS 1.0 Remote Code Execution via extra_fields.php

> Unauthenticated attackers can execute arbitrary code via unsafe eval in extra_fields.php, leading to full system compromise.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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:** 5 Apr 2026
- **Updated:** 6 Apr 2026
- **Also known as:** GHSA-2284-8cw5-5697

## What is CVE-2019-25687?

CVE-2019-25687 is a critical code injection vulnerability in wisdom Pegasus CMS, published on 5 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Pegasus CMS 1.0 contains a remote code execution vulnerability in the extra_fields.php plugin that allows unauthenticated attackers to execute arbitrary commands by exploiting unsafe eval functionality. Attackers can send POST requests to the submit.php endpoint with malicious PHP code in the action parameter to achieve code execution and obtain an interactive shell.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2019-25687?

It affects 1 product.


Products: Wisdom Pegasus Cms.

## How do I fix CVE-2019-25687?

No fix has been published for CVE-2019-25687 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-25687 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25687 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-25687 and fix it if it is affected.

What it is: CVE-2019-25687 is a critical code injection vulnerability in wisdom Pegasus CMS, published on 5 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25687 exists.

Affected product: wisdom Pegasus CMS. 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-2019-25687/ (Markdown: https://insights.sbomify.com/CVE-2019-25687/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-25687
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-25687
- OSV: https://osv.dev/vulnerability/CVE-2019-25687

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-25687/
Summaries are generated and may contain mistakes; the official description above is the record.