# CVE-2023-20265: Cross-site scripting in Cisco IP Phones with Multiplatform Firmware

> Authenticated attackers can inject malicious scripts into Cisco IP Phone web interfaces, allowing code execution or data theft when users view the page.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Nov 2023
- **Updated:** 29 Aug 2024
- **Also known as:** GHSA-qhgp-x2hc-2hvc

## What is CVE-2023-20265?

CVE-2023-20265 is a medium-severity cross-site scripting vulnerability in Cisco IP Phones with Multiplatform Firmware, published on 21 Nov 2023. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability in the web-based management interface of a small subset of Cisco IP Phones could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by persuading a user of an affected interface to view a page containing malicious HTML or script content. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker must have valid credentials to access the web-based management interface of the affected device.

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

## Which versions are affected by CVE-2023-20265?

It affects 4 products.


Products: Cisco Ip Dect 110 Firmware, Cisco Ip Dect 210 Firmware, Cisco Unified Ip Phone 6901 Firmware, Cisco Unified Sip Phone 3905 Firmware.

## How do I fix CVE-2023-20265?

No fix has been published for CVE-2023-20265 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-20265 being exploited?

There is no known exploitation of CVE-2023-20265 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-20265 and fix it if it is affected.

What it is: CVE-2023-20265 is a medium-severity cross-site scripting vulnerability in Cisco IP Phones with Multiplatform Firmware, published on 21 Nov 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-20265 in the wild and no public exploit code.

Affected product: Cisco IP Phones with Multiplatform Firmware. 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-2023-20265/ (Markdown: https://insights.sbomify.com/CVE-2023-20265/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-20265
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-20265
- OSV: https://osv.dev/vulnerability/CVE-2023-20265

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-20265/
Summaries are generated and may contain mistakes; the official description above is the record.