# CVE-2022-20863: Cisco Webex Meetings App Character Interface Manipulation Vulnerability

> An attacker can manipulate link displays in Cisco Webex Meetings to conduct phishing or spoofing attacks via improper character rendering.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 8 Sep 2022
- **Updated:** 6 Nov 2024
- **Also known as:** GHSA-hh7x-5f4p-r457

## What is CVE-2022-20863?

CVE-2022-20863 is a medium-severity cross-site scripting vulnerability in Cisco Webex Meetings Desktop App, published on 8 Sep 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A vulnerability in the messaging interface of Cisco Webex App, formerly Webex Teams, could allow an unauthenticated, remote attacker to manipulate links or other content within the messaging interface. This vulnerability exists because the affected software does not properly handle character rendering. An attacker could exploit this vulnerability by sending messages within the application interface. A successful exploit could allow the attacker to modify the display of links or other content within the interface, potentially allowing the attacker to conduct phishing or spoofing attacks.

Weakness: CWE-450 (Multiple Interpretations of UI Input)

## Which versions are affected by CVE-2022-20863?

It affects 1 product.


Products: Cisco Webex Teams.

## How do I fix CVE-2022-20863?

No fix has been published for CVE-2022-20863 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-20863 being exploited?

There is no known exploitation of CVE-2022-20863 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Webex Meetings Desktop App

- [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-2022-20863 and fix it if it is affected.

What it is: CVE-2022-20863 is a medium-severity cross-site scripting vulnerability in Cisco Webex Meetings Desktop App, published on 8 Sep 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-20863 in the wild and no public exploit code.

Affected product: Cisco Webex Meetings Desktop App. 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-2022-20863/ (Markdown: https://insights.sbomify.com/CVE-2022-20863/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-20863
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-20863
- OSV: https://osv.dev/vulnerability/CVE-2022-20863

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-20863/
Summaries are generated and may contain mistakes; the official description above is the record.