# CVE-2018-0357: Cross-site scripting in Cisco WebEx unknown

> Unauthenticated remote attackers can execute arbitrary script in users' browsers via crafted links due to insufficient input validation in Cisco WebEx.

- **Severity:** Medium 6.1 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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:** 7 Jun 2018
- **Updated:** 29 Nov 2024
- **Also known as:** GHSA-79gp-3wrv-847v

## What is CVE-2018-0357?

CVE-2018-0357 is a medium-severity cross-site scripting vulnerability in Cisco Webex Meetings, published on 7 Jun 2018. 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 web framework of Cisco WebEx could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against the user of the web interface of an affected system. The vulnerability is due to insufficient input validation of certain parameters that are passed to the affected software via the HTTP GET and HTTP POST methods. An attacker who can convince a user to follow an attacker-supplied link could execute arbitrary script or HTML code in the user's browser in the context of an affected site. Cisco Bug IDs: CSCvi71274.

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

## Which versions are affected by CVE-2018-0357?

It affects 1 product.


Products: Cisco Webex Meetings.

## How do I fix CVE-2018-0357?

No fix has been published for CVE-2018-0357 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-0357 being exploited?

There is no known exploitation of CVE-2018-0357 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-2018-0357 and fix it if it is affected.

What it is: CVE-2018-0357 is a medium-severity cross-site scripting vulnerability in Cisco Webex Meetings, published on 7 Jun 2018. 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-2018-0357 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-2018-0357/ (Markdown: https://insights.sbomify.com/CVE-2018-0357/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-0357
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-0357
- OSV: https://osv.dev/vulnerability/CVE-2018-0357

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-0357/
Summaries are generated and may contain mistakes; the official description above is the record.