# CVE-2018-15448: Cisco Registered Envelope Service Information Disclosure Vulnerability

> Unauthenticated attackers can discover sensitive user information via search engines due to insecure indexing configuration in Cisco Registered Envelope Service.

- **Severity:** Medium 5.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Nov 2018
- **Updated:** 26 Nov 2024
- **Also known as:** GHSA-pwfj-gc87-c7xv

## What is CVE-2018-15448?

CVE-2018-15448 is a medium-severity vulnerability in Cisco Registered Envelope Service, published on 8 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in the user management functions of Cisco Registered Envelope Service could allow an unauthenticated, remote attacker to discover sensitive user information. The attacker could use this information to conduct additional reconnaissance attacks. The vulnerability is due to an insecure configuration that allows improper indexing. An attacker could exploit this vulnerability by using a search engine to look for specific data strings. A successful exploit could allow the attacker to discover certain sensitive information about the application, including usernames.

Weakness: CWE-16

## Which versions are affected by CVE-2018-15448?

It affects 1 product.


Products: Cisco Registered Envelope Service.

## How do I fix CVE-2018-15448?

No fix has been published for CVE-2018-15448 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-15448 being exploited?

There is no known exploitation of CVE-2018-15448 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Registered Envelope Service

- [CVE-2017-12320](https://insights.sbomify.com/CVE-2017-12320/): Cross-site scripting in Cisco Registered Envelope Service (medium 6.1)
- [CVE-2017-12321](https://insights.sbomify.com/CVE-2017-12321/): Cross-site scripting in Cisco Registered Envelope Service (medium 6.1)
- [CVE-2017-12323](https://insights.sbomify.com/CVE-2017-12323/): Cross-site scripting in Cisco Registered Envelope Service (medium 6.1)
- [CVE-2017-3889](https://insights.sbomify.com/CVE-2017-3889/): Open redirect in Cisco Registered Envelope Service (medium 6.1)
- [CVE-2019-1777](https://insights.sbomify.com/CVE-2019-1777/): Cisco Registered Envelope Service Stored Cross-Site Scripting Vulnerability (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-15448 and fix it if it is affected.

What it is: CVE-2018-15448 is a medium-severity vulnerability in Cisco Registered Envelope Service, published on 8 Nov 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-2018-15448 in the wild and no public exploit code.

Affected product: Cisco Registered Envelope Service. 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-2018-15448/ (Markdown: https://insights.sbomify.com/CVE-2018-15448/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-15448
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-15448
- OSV: https://osv.dev/vulnerability/CVE-2018-15448

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-15448/
Summaries are generated and may contain mistakes; the official description above is the record.