# CVE-2026-4297: Missing authorization in Welcome Software Publishing

> Authenticated subscribers can escalate privileges to administrator by updating arbitrary WordPress options via an XML-RPC method lacking authorization checks.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 24 Jun 2026
- **Updated:** 24 Jun 2026
- **Also known as:** GHSA-xgj6-m977-pghj

## What is CVE-2026-4297?

CVE-2026-4297 is a high-severity missing authorization vulnerability in newscred Welcome Software Publishing, published on 24 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Welcome Software Publishing plugin for WordPress is vulnerable to Arbitrary Options Update in all versions up to and including 0.0.31. This is due to a missing capability check in the nc_setOption() function, which is exposed via the nc.setOption XML-RPC method. The function authenticates the user via $wp_xmlrpc_server->login() (verifying credentials are valid) but does not perform any authorization check such as current_user_can('manage_options'). This makes it possible for authenticated attackers, with Subscriber-level access and above, to update arbitrary WordPress options via XML-RPC requests. This can be leveraged to change the default_role option to 'administrator' and then register a new administrator account, achieving full privilege escalation and site takeover.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-4297?


## How do I fix CVE-2026-4297?

No fix has been published for CVE-2026-4297 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-4297 being exploited?

There is no known exploitation of CVE-2026-4297 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-4297 and fix it if it is affected.

What it is: CVE-2026-4297 is a high-severity missing authorization vulnerability in newscred Welcome Software Publishing, published on 24 Jun 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-2026-4297 in the wild and no public exploit code.

Affected product: newscred Welcome Software Publishing. 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-2026-4297/ (Markdown: https://insights.sbomify.com/CVE-2026-4297/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-4297
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-4297
- OSV: https://osv.dev/vulnerability/CVE-2026-4297

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-4297/
Summaries are generated and may contain mistakes; the official description above is the record.