# CVE-2026-16210: newpanjing simpleui AjaxAdmin AJAX Endpoint admin.py self.get_action missing authentication

> Attackers can access the AjaxAdmin AJAX endpoint without authentication, potentially modifying data or escalating privileges in applications using simpleui.

- **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:** 19 Jul 2026
- **Updated:** 21 Jul 2026
- **Also known as:** GHSA-xm67-c694-6hwc

## What is CVE-2026-16210?

CVE-2026-16210 is a medium-severity missing authorization vulnerability in newpanjing simpleui, published on 19 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was found in newpanjing simpleui 2026.01.13. This affects the function self.get_action of the file simpleui/admin.py of the component AjaxAdmin AJAX Endpoint. Performing a manipulation results in missing authentication. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-306 (Missing Authentication for Critical Functionality), CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2026-16210?


## How do I fix CVE-2026-16210?

No fix has been published for CVE-2026-16210 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-16210 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16210 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-16210 and fix it if it is affected.

What it is: CVE-2026-16210 is a medium-severity missing authorization vulnerability in newpanjing simpleui, published on 19 Jul 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-2026-16210 exists.

Affected product: newpanjing simpleui. 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-2026-16210/ (Markdown: https://insights.sbomify.com/CVE-2026-16210/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-16210
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-16210
- OSV: https://osv.dev/vulnerability/CVE-2026-16210

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-16210/
Summaries are generated and may contain mistakes; the official description above is the record.