# CVE-2025-13786: taosir WTCMS index.php fetch code injection

> Remote attackers can execute arbitrary code via the fetch function in index.php due to improper input handling in WTCMS.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Nov 2025
- **Updated:** 1 Dec 2025
- **Also known as:** GHSA-pvg7-jq3v-hmq6

## What is CVE-2025-13786?

CVE-2025-13786 is a medium-severity code injection vulnerability in taosir WTCMS, published on 30 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was detected in taosir WTCMS up to 01a5f68a3dfc2fdddb44eed967bb2d4f60487665. Impacted is the function fetch of the file /index.php. Performing manipulation of the argument content results in code injection. It is possible to initiate the attack remotely. The exploit is now public and may be used. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2025-13786?

It affects 1 product.


Products: Wtcms Project Wtcms.

## How do I fix CVE-2025-13786?

No fix has been published for CVE-2025-13786 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-13786 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-13786 exists.

## Other vulnerabilities in taosir WTCMS

- [CVE-2024-48237](https://insights.sbomify.com/CVE-2024-48237/): Missing authorization in n/a (critical 9.8)
- [CVE-2019-8908](https://insights.sbomify.com/CVE-2019-8908/): File upload in n/a (critical 9.8)
- [CVE-2019-8910](https://insights.sbomify.com/CVE-2019-8910/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2018-10267](https://insights.sbomify.com/CVE-2018-10267/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2019-8909](https://insights.sbomify.com/CVE-2019-8909/): Denial of service in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-13786 and fix it if it is affected.

What it is: CVE-2025-13786 is a medium-severity code injection vulnerability in taosir WTCMS, published on 30 Nov 2025. 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-2025-13786 exists.

Affected product: taosir WTCMS. 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-2025-13786/ (Markdown: https://insights.sbomify.com/CVE-2025-13786/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-13786
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-13786
- OSV: https://osv.dev/vulnerability/CVE-2025-13786

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-13786/
Summaries are generated and may contain mistakes; the official description above is the record.