# CVE-2020-3261: Cisco Mobility Express Software Cross-Site Request Forgery Vulnerability

> An attacker can trick a logged-in user into modifying the configuration of Cisco Mobility Express devices via a malicious link.

- **Severity:** High 8.1 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H`)
- **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:** 15 Apr 2020
- **Updated:** 15 Nov 2024
- **Also known as:** GHSA-2wx7-3qvr-gm34

## What is CVE-2020-3261?

CVE-2020-3261 is a high-severity vulnerability in Cisco Mobility Express, published on 15 Apr 2020. 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-based management interface of Cisco Mobility Express Software could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected system. The vulnerability is due to insufficient CSRF protections for the web-based management interface on an affected device. An attacker could exploit this vulnerability by persuading a user with an active session on an affected device to follow a malicious link. A successful exploit could allow the attacker to perform arbitrary actions, including modifying the configuration, with the privilege level of the user.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2020-3261?

It affects 17 products.


Products: Cisco 6300 Series Access Points Firmware, Cisco Aironet 1542d Firmware, Cisco Aironet 1542i Firmware, Cisco Aironet 1562d Firmware, Cisco Aironet 1562e Firmware, Cisco Aironet 1562i Firmware, Cisco Aironet 1815 Firmware, Cisco Aironet 1830 Firmware, Cisco Aironet 1840 Firmware, Cisco Aironet 1850 Firmware, Cisco Aironet 2800e Firmware, Cisco Aironet 2800i Firmware, Cisco Aironet 3800e Firmware, Cisco Aironet 3800i Firmware, Cisco Aironet 3800p Firmware, Cisco Aironet 4800 Firmware, Cisco Catalyst Iw6300 Firmware.

## How do I fix CVE-2020-3261?

No fix has been published for CVE-2020-3261 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-3261 being exploited?

There is no known exploitation of CVE-2020-3261 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-3261 and fix it if it is affected.

What it is: CVE-2020-3261 is a high-severity vulnerability in Cisco Mobility Express, published on 15 Apr 2020. 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-2020-3261 in the wild and no public exploit code.

Affected product: Cisco Mobility Express. 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-2020-3261/ (Markdown: https://insights.sbomify.com/CVE-2020-3261/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-3261
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3261
- OSV: https://osv.dev/vulnerability/CVE-2020-3261

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-3261/
Summaries are generated and may contain mistakes; the official description above is the record.