# CVE-2022-20820: Cisco Webex Meetings Web Interface Vulnerabilities

> Remote attackers can execute cross-site scripting or frame hijacking attacks against users of the Cisco Webex Meetings web interface.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 10 Aug 2022
- **Updated:** 1 Nov 2024
- **Also known as:** GHSA-48pw-3c9w-56rv

## What is CVE-2022-20820?

CVE-2022-20820 is a medium-severity cross-site scripting vulnerability in Cisco Webex Meetings, published on 10 Aug 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Multiple vulnerabilities in the web interface of Cisco Webex Meetings could allow a remote attacker to conduct a cross-site scripting (XSS) attack or a frame hijacking attack against a user of the web interface. For more information about these vulnerabilities, see the Details section of this advisory.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-1021 (Improper Restriction of Rendered UI Layers or Frames)

## Which versions are affected by CVE-2022-20820?

It affects 1 product.


Products: Cisco Webex Meetings.

## How do I fix CVE-2022-20820?

No fix has been published for CVE-2022-20820 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-20820 being exploited?

There is no known exploitation of CVE-2022-20820 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Webex Meetings

- [CVE-2017-12368](https://insights.sbomify.com/CVE-2017-12368/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)
- [CVE-2017-12369](https://insights.sbomify.com/CVE-2017-12369/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)
- [CVE-2017-12370](https://insights.sbomify.com/CVE-2017-12370/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)
- [CVE-2017-12371](https://insights.sbomify.com/CVE-2017-12371/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)
- [CVE-2017-12372](https://insights.sbomify.com/CVE-2017-12372/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-20820 and fix it if it is affected.

What it is: CVE-2022-20820 is a medium-severity cross-site scripting vulnerability in Cisco Webex Meetings, published on 10 Aug 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-20820 in the wild and no public exploit code.

Affected product: Cisco Webex Meetings. 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-2022-20820/ (Markdown: https://insights.sbomify.com/CVE-2022-20820/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-20820
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-20820
- OSV: https://osv.dev/vulnerability/CVE-2022-20820

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-20820/
Summaries are generated and may contain mistakes; the official description above is the record.