# CVE-2019-10270: Auth bypass in n/a

> Attackers can reset passwords for any user, including admins, by manipulating the user_id parameter, leading to account takeover and privilege escalation.

- **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:** 21 Jun 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-c93v-xv7q-4w4c

## What is CVE-2019-10270?

CVE-2019-10270 is a high-severity authentication bypass vulnerability in n/a, published on 21 Jun 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An arbitrary password reset issue was discovered in the Ultimate Member plugin 2.39 for WordPress. It is possible (due to lack of verification and correlation between the reset password key sent by mail and the user_id parameter) to reset the password of another user. One only needs to know the user_id, which is publicly available. One just has to intercept the password modification request and modify user_id. It is possible to modify the passwords for any users or admin WordPress Ultimate Members. This could lead to account compromise and privilege escalation.

Weakness: CWE-640 (Weak Password Recovery Mechanism for Forgotten Password)

## Which versions are affected by CVE-2019-10270?

It affects 1 product.


Products: Ultimatemember Ultimate Member.

## How do I fix CVE-2019-10270?

No fix has been published for CVE-2019-10270 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-10270 being exploited?

There is no known exploitation of CVE-2019-10270 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-36155](https://insights.sbomify.com/CVE-2020-36155/): Privilege escalation in n/a (critical 10.0)
- [CVE-2020-36157](https://insights.sbomify.com/CVE-2020-36157/): Privilege escalation in n/a (critical 10.0)
- [CVE-2020-36156](https://insights.sbomify.com/CVE-2020-36156/): Privilege escalation in n/a (critical 9.9)
- [CVE-2024-1071](https://insights.sbomify.com/CVE-2024-1071/): SQL injection in Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin (critical 9.8)
- [CVE-2023-3460](https://insights.sbomify.com/CVE-2023-3460/): Ultimate Member < 2.6.7 - Unauthenticated Privilege Escalation (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-10270 and fix it if it is affected.

What it is: CVE-2019-10270 is a high-severity authentication bypass vulnerability in n/a, published on 21 Jun 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-10270 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-2019-10270/ (Markdown: https://insights.sbomify.com/CVE-2019-10270/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-10270
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-10270
- OSV: https://osv.dev/vulnerability/CVE-2019-10270

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-10270/
Summaries are generated and may contain mistakes; the official description above is the record.