# CVE-2025-56154: Cross-site scripting in n/a

> Attackers can inject arbitrary JavaScript via the name parameter in the author endpoint, potentially executing code in victim browsers.

- **Severity:** Medium 6.1 (`CVSS:3.1/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:** 2 Oct 2025
- **Updated:** 20 Jan 2026
- **Also known as:** GHSA-4xvq-93jj-7c4r

## What is CVE-2025-56154?

CVE-2025-56154 is a medium-severity cross-site scripting vulnerability in n/a, published on 2 Oct 2025. 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

htmly v3.0.8 is vulnerable to Cross Site Scripting (XSS) in the /author/:name endpoint of the affected application. The name parameter is not properly sanitized before being reflected in the HTML response, allowing attackers to inject arbitrary JavaScript payloads.

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

## Which versions are affected by CVE-2025-56154?

It affects 1 product.


Products: Htmly Htmly.

## How do I fix CVE-2025-56154?

No fix has been published for CVE-2025-56154 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-56154 being exploited?

There is no known exploitation of CVE-2025-56154 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-36701](https://insights.sbomify.com/CVE-2021-36701/): Path traversal in n/a (critical 9.1)
- [CVE-2021-33354](https://insights.sbomify.com/CVE-2021-33354/): Path traversal in n/a (high 8.1)
- [CVE-2021-40285](https://insights.sbomify.com/CVE-2021-40285/): Path traversal in n/a (high 8.1)
- [CVE-2024-34191](https://insights.sbomify.com/CVE-2024-34191/): Path traversal in n/a (medium 6.5)
- [CVE-2020-23766](https://insights.sbomify.com/CVE-2020-23766/): Path traversal in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-56154 and fix it if it is affected.

What it is: CVE-2025-56154 is a medium-severity cross-site scripting vulnerability in n/a, published on 2 Oct 2025. 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-2025-56154 in the wild and no public exploit code.

Affected product: n/a. 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-2025-56154/ (Markdown: https://insights.sbomify.com/CVE-2025-56154/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-56154
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-56154
- OSV: https://osv.dev/vulnerability/CVE-2025-56154

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-56154/
Summaries are generated and may contain mistakes; the official description above is the record.