# CVE-2024-20395: Information disclosure in Cisco Webex Teams

> An adjacent attacker can capture session tokens from insecure media requests, potentially allowing them to impersonate the targeted user.

- **Severity:** Medium 6.4 (`CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 17 Jul 2024
- **Updated:** 1 Aug 2024
- **Also known as:** GHSA-28jg-69qr-j99g

## What is CVE-2024-20395?

CVE-2024-20395 is a medium-severity vulnerability in Cisco Webex Teams, published on 17 Jul 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

A vulnerability in the media retrieval functionality of Cisco Webex App could allow an unauthenticated, adjacent attacker to gain access to sensitive session information.

 This vulnerability is due to insecure transmission of requests to backend services when the app accesses embedded media, such as images. An attacker could exploit this vulnerability by sending a message with embedded media that is stored on a messaging server to a targeted user. If the attacker can observe transmitted traffic in a privileged network position, a successful exploit could allow the attacker to capture session token information from insecurely transmitted requests and possibly reuse the captured session information to take further actions as the targeted user.

Weakness: CWE-523 (Unprotected Transport of Credentials)

## Which versions are affected by CVE-2024-20395?

It affects 1 product.


Products: Cisco Webex Teams.

## How do I fix CVE-2024-20395?

No fix has been published for CVE-2024-20395 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-20395 being exploited?

There is no known exploitation of CVE-2024-20395 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Webex Teams

- [CVE-2025-20236](https://insights.sbomify.com/CVE-2025-20236/): Cisco Webex App Client-Side Remote Code Execution Vulnerability (high 8.8)
- [CVE-2018-0387](https://insights.sbomify.com/CVE-2018-0387/): Code injection in Cisco Webex Teams unknown (high 8.8)
- [CVE-2018-0436](https://insights.sbomify.com/CVE-2018-0436/): Cisco Webex Teams Information Disclosure and Modification Vulnerability (high 8.7)
- [CVE-2020-3535](https://insights.sbomify.com/CVE-2020-3535/): Cisco Webex Teams Client for Windows DLL Hijacking Vulnerability (high 7.8)
- [CVE-2019-1636](https://insights.sbomify.com/CVE-2019-1636/): Cisco Webex Teams URI Handler Insecure Library Loading Vulnerability (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-20395 and fix it if it is affected.

What it is: CVE-2024-20395 is a medium-severity vulnerability in Cisco Webex Teams, published on 17 Jul 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2024-20395 in the wild and no public exploit code.

Affected product: Cisco Webex Teams. 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-2024-20395/ (Markdown: https://insights.sbomify.com/CVE-2024-20395/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-20395
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-20395
- OSV: https://osv.dev/vulnerability/CVE-2024-20395

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-20395/
Summaries are generated and may contain mistakes; the official description above is the record.