# CVE-2013-6968: Information disclosure in n/a

> Remote attackers can enumerate valid attendee email addresses by analyzing distinct error messages during registration attempts in Cisco WebEx Training Center.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:P/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:** 14 Dec 2013
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-964q-9m59-j738

## What is CVE-2013-6968?

CVE-2013-6968 is a medium-severity vulnerability in n/a, published on 14 Dec 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Cisco WebEx Training Center provides different error messages for registration attempts depending on whether the e-mail address exists, which allows remote attackers to enumerate attendees via a series of requests, aka Bug ID CSCul36003.

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

## Which versions are affected by CVE-2013-6968?

It affects 1 product.


Products: Cisco Webex Training Center.

## How do I fix CVE-2013-6968?

No fix has been published for CVE-2013-6968 yet. Limit exposure of the affected software until one is available.

## Is CVE-2013-6968 being exploited?

There is no known exploitation of CVE-2013-6968 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2013-6710](https://insights.sbomify.com/CVE-2013-6710/): Cross-site request forgery in n/a (medium 6.8)
- [CVE-2013-1109](https://insights.sbomify.com/CVE-2013-1109/): Cross-site request forgery in n/a (medium 6.8)
- [CVE-2013-6966](https://insights.sbomify.com/CVE-2013-6966/): Open redirect in n/a (medium 5.8)
- [CVE-2013-6971](https://insights.sbomify.com/CVE-2013-6971/): Open redirect in n/a (medium 5.8)
- [CVE-2013-6709](https://insights.sbomify.com/CVE-2013-6709/): Missing authorization in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2013-6968 and fix it if it is affected.

What it is: CVE-2013-6968 is a medium-severity vulnerability in n/a, published on 14 Dec 2013. 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-2013-6968 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-2013-6968/ (Markdown: https://insights.sbomify.com/CVE-2013-6968/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2013-6968
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-6968
- OSV: https://osv.dev/vulnerability/CVE-2013-6968

---
From sbomify Insights: https://insights.sbomify.com/CVE-2013-6968/
Summaries are generated and may contain mistakes; the official description above is the record.