# CVE-2026-30452: Missing authorization in n/a

> Low-privilege authenticated users can modify articles owned by higher-privilege users by manipulating article IDs during duplication.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Apr 2026
- **Updated:** 22 Apr 2026
- **Also known as:** GHSA-px9m-396q-mg36

## What is CVE-2026-30452?

CVE-2026-30452 is a medium-severity missing authorization vulnerability in n/a, published on 21 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Textpattern CMS 4.9.0 contains a Broken Access Control vulnerability in the article management system that allows authenticated users with low privileges to modify articles owned by users with higher privileges. By manipulating the article ID parameter during the duplicate-and-save workflow in textpattern/include/txp_article.php, an attacker can bypass authorization checks and overwrite content belonging to other users.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-30452?

It affects 1 product.


Products: Textpattern Textpattern.

## How do I fix CVE-2026-30452?

No fix has been published for CVE-2026-30452 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-30452 being exploited?

There is no known exploitation of CVE-2026-30452 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-19510](https://insights.sbomify.com/CVE-2020-19510/): File upload in n/a (critical 9.8)
- [CVE-2018-7474](https://insights.sbomify.com/CVE-2018-7474/): SQL injection in n/a (critical 9.8)
- [CVE-2023-50038](https://insights.sbomify.com/CVE-2023-50038/): File upload in n/a (high 8.8)
- [CVE-2023-24269](https://insights.sbomify.com/CVE-2023-24269/): File upload in n/a (high 8.8)
- [CVE-2020-29458](https://insights.sbomify.com/CVE-2020-29458/): Cross-site request forgery in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-30452 and fix it if it is affected.

What it is: CVE-2026-30452 is a medium-severity missing authorization vulnerability in n/a, published on 21 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-30452 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-2026-30452/ (Markdown: https://insights.sbomify.com/CVE-2026-30452/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-30452
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30452
- OSV: https://osv.dev/vulnerability/CVE-2026-30452

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-30452/
Summaries are generated and may contain mistakes; the official description above is the record.