# CVE-2026-1884: ZenTao Webhook model.php fetchHook server-side request forgery

> Remote attackers can exploit a server-side request forgery vulnerability in ZenTao's Webhook module to access internal resources or bypass security controls.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Feb 2026
- **Updated:** 23 Feb 2026
- **Also known as:** GHSA-rxcq-q6q7-hm9r

## What is CVE-2026-1884?

CVE-2026-1884 is a medium-severity server-side request forgery vulnerability in ZenTao, published on 4 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A weakness has been identified in ZenTao up to 21.7.6-85642. The impacted element is the function fetchHook of the file module/webhook/model.php of the component Webhook Module. This manipulation causes server-side request forgery. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-1884?

It affects 1 product.


Products: Zentao Zentao.

## How do I fix CVE-2026-1884?

No fix has been published for CVE-2026-1884 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-1884 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1884 exists.

## Other vulnerabilities in ZenTao

- [CVE-2026-2551](https://insights.sbomify.com/CVE-2026-2551/): ZenTao Backup control.php delete path traversal (medium 5.3)
- [CVE-2025-13787](https://insights.sbomify.com/CVE-2025-13787/): ZenTao File control.php delete privileges management (medium 5.3)
- [CVE-2025-13789](https://insights.sbomify.com/CVE-2025-13789/): ZenTao model.php makeRequest server-side request forgery (medium 5.3)
- [CVE-2026-2552](https://insights.sbomify.com/CVE-2026-2552/): ZenTao Editor control.php delete path traversal (medium 5.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-1884 and fix it if it is affected.

What it is: CVE-2026-1884 is a medium-severity server-side request forgery vulnerability in ZenTao, published on 4 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1884 exists.

Affected product: ZenTao. 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-2026-1884/ (Markdown: https://insights.sbomify.com/CVE-2026-1884/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-1884
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-1884
- OSV: https://osv.dev/vulnerability/CVE-2026-1884

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-1884/
Summaries are generated and may contain mistakes; the official description above is the record.