# CVE-2018-11554: Information disclosure in n/a

> Attackers can hijack accounts by brute-forcing verification codes due to information exposure and long code lifetimes in the password reset feature.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Jun 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-c8qv-w2h5-xjq7

## What is CVE-2018-11554?

CVE-2018-11554 is a critical vulnerability in n/a, published on 5 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The forgotten-password feature in index.php/member/reset/reset_email.html in YzmCMS v3.2 through v3.7 has a Response Discrepancy Information Exposure issue and an unexpectedly long lifetime for a verification code, which makes it easier for remote attackers to hijack accounts via a brute-force approach.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2018-11554?

It affects 1 product.


Products: Yzmcms Yzmcms.

## How do I fix CVE-2018-11554?

No fix has been published for CVE-2018-11554 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-11554 being exploited?

There is no known exploitation of CVE-2018-11554 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2022-23383](https://insights.sbomify.com/CVE-2022-23383/): Missing authorization in n/a (critical 9.1)
- [CVE-2020-23595](https://insights.sbomify.com/CVE-2020-23595/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2022-23384](https://insights.sbomify.com/CVE-2022-23384/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2022-23888](https://insights.sbomify.com/CVE-2022-23888/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2020-19951](https://insights.sbomify.com/CVE-2020-19951/): Cross-site request forgery in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-11554 and fix it if it is affected.

What it is: CVE-2018-11554 is a critical vulnerability in n/a, published on 5 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-11554 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-2018-11554/ (Markdown: https://insights.sbomify.com/CVE-2018-11554/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-11554
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-11554
- OSV: https://osv.dev/vulnerability/CVE-2018-11554

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-11554/
Summaries are generated and may contain mistakes; the official description above is the record.