# CVE-2023-20188: Cross-site scripting in Cisco Small Business Smart and Managed Switches > Authenticated attackers can inject malicious scripts into the web interface of Cisco Small Business switches, allowing code execution or data theft against other users. - **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/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:** A user has to click or open something - **Fix available:** No - **Published:** 28 Jun 2023 - **Updated:** 2 Aug 2024 - **Also known as:** GHSA-hpjg-hqr4-wggc ## What is CVE-2023-20188? CVE-2023-20188 is a medium-severity cross-site scripting vulnerability in Cisco Small Business Smart and Managed Switches, published on 28 Jun 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link. ### Official description A vulnerability in the web-based management interface of Cisco Small Business 200 Series Smart Switches, Cisco Small Business 300 Series Managed Switches, and Cisco Small Business 500 Series Stackable Managed Switches 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 would need to have valid credentials to access the web-based management interface of the affected device. Cisco has not released software updates to address this vulnerability. Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-87 (Improper Neutralization of Alternate XSS Syntax) ## Which versions are affected by CVE-2023-20188? It affects 61 products. Products: Cisco Sf200-24 Firmware, Cisco Sf200-24fp Firmware, Cisco Sf200-24p Firmware, Cisco Sf200-48 Firmware, Cisco Sf200-48p Firmware, Cisco Sf300-08 Firmware, Cisco Sf300-24 Firmware, Cisco Sf300-24mp Firmware, Cisco Sf300-24p Firmware, Cisco Sf300-24pp Firmware, Cisco Sf300-48 Firmware, Cisco Sf300-48p Firmware, Cisco Sf300-48pp Firmware, Cisco Sf302-08 Firmware, Cisco Sf302-08mp Firmware, Cisco Sf302-08mpp Firmware, Cisco Sf302-08p Firmware, Cisco Sf302-08pp Firmware, Cisco Sf500-24 Firmware, Cisco Sf500-24mp Firmware and 41 more. ## How do I fix CVE-2023-20188? No fix has been published for CVE-2023-20188 yet. Limit exposure of the affected software until one is available. ## Is CVE-2023-20188 being exploited? There is no known exploitation of CVE-2023-20188 in the wild and no public exploit code. ## Other vulnerabilities in Cisco Small Business Smart and Managed Switches - [CVE-2018-15439](https://insights.sbomify.com/CVE-2018-15439/): Cisco Small Business Switches Privileged Access Vulnerability (critical 9.8) - [CVE-2020-3363](https://insights.sbomify.com/CVE-2020-3363/): Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability (high 8.6) - [CVE-2020-3297](https://insights.sbomify.com/CVE-2020-3297/): Cisco Small Business Smart and Managed Switches Session Management Vulnerability (high 8.1) - [CVE-2019-12636](https://insights.sbomify.com/CVE-2019-12636/): Cisco Small Business Smart and Managed Switches Cross-Site Request Forgery Vulnerability (high 8.1) - [CVE-2019-15993](https://insights.sbomify.com/CVE-2019-15993/): Cisco Small Business Switches Information Disclosure Vulnerability (high 7.5) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2023-20188 and fix it if it is affected. What it is: CVE-2023-20188 is a medium-severity cross-site scripting vulnerability in Cisco Small Business Smart and Managed Switches, published on 28 Jun 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link. Exploitation: There is no known exploitation of CVE-2023-20188 in the wild and no public exploit code. Affected product: Cisco Small Business Smart and Managed Switches. 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-2023-20188/ (Markdown: https://insights.sbomify.com/CVE-2023-20188/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2023-20188 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-20188 - OSV: https://osv.dev/vulnerability/CVE-2023-20188 --- From sbomify Insights: https://insights.sbomify.com/CVE-2023-20188/ Summaries are generated and may contain mistakes; the official description above is the record.