# CVE-2022-20802: Cisco Enterprise Chat and Email Stored Cross-Site Scripting Vulnerability

> Authenticated attackers can inject malicious scripts into the Cisco ECE web interface, potentially executing code or stealing browser data.

- **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:** 27 May 2022
- **Updated:** 6 Nov 2024
- **Also known as:** GHSA-mjwp-9g5x-mxxc

## What is CVE-2022-20802?

CVE-2022-20802 is a medium-severity cross-site scripting vulnerability in Cisco Enterprise Chat and Email, published on 27 May 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

A vulnerability in the web interface of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to insufficient validation of user-supplied input that is processed by the web interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected system. A successful exploit could allow the attacker to execute arbitrary code in the context of the interface or access sensitive, browser-based information. To successfully exploit this vulnerability, an attacker would need valid agent credentials.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2022-20802?

It affects 1 product.


Products: Cisco Enterprise Chat and Email.

## How do I fix CVE-2022-20802?

No fix has been published for CVE-2022-20802 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-20802 being exploited?

There is no known exploitation of CVE-2022-20802 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Enterprise Chat and Email

- [CVE-2025-20139](https://insights.sbomify.com/CVE-2025-20139/): Denial of service in Cisco Enterprise Chat and Email (high 7.5)
- [CVE-2024-20484](https://insights.sbomify.com/CVE-2024-20484/): Cisco Enterprise Chat and Email Denial of Service Vulnerability (high 7.5)
- [CVE-2019-1877](https://insights.sbomify.com/CVE-2019-1877/): Cisco Enterprise Chat and Email Attachment Download Vulnerability (medium 6.5)
- [CVE-2025-20310](https://insights.sbomify.com/CVE-2025-20310/): Cisco Enterprise Chat and Email Stored Cross-Site Scripting Vulnerability (medium 6.1)
- [CVE-2022-20631](https://insights.sbomify.com/CVE-2022-20631/): Cisco Enterprise Chat and Email Cross-Site Scripting Vulnerability (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-20802 and fix it if it is affected.

What it is: CVE-2022-20802 is a medium-severity cross-site scripting vulnerability in Cisco Enterprise Chat and Email, published on 27 May 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-2022-20802 in the wild and no public exploit code.

Affected product: Cisco Enterprise Chat and Email. 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-2022-20802/ (Markdown: https://insights.sbomify.com/CVE-2022-20802/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-20802
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-20802
- OSV: https://osv.dev/vulnerability/CVE-2022-20802

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-20802/
Summaries are generated and may contain mistakes; the official description above is the record.