# CVE-2026-46546: Frappe LMS: HTML injection in user-controlled metadata

> Authenticated users can inject HTML into metadata fields, causing visitors to be redirected to attacker-controlled URLs.

- **Severity:** Low 2.1 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 9 Jun 2026
- **Updated:** 10 Jun 2026
- **Also known as:** GHSA-2x47-gr9q-w6fv

## What is CVE-2026-46546?

CVE-2026-46546 is a low-severity cross-site scripting vulnerability in frappe lms, published on 9 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Frappe Learning Management System (LMS) is a learning system that helps users structure their content. Prior to version 2.53.0, an authenticated user could supply specially crafted content in certain user-editable fields that, when surfaced in page metadata, caused visitors' browsers to navigate to an attacker-chosen URL. This issue has been patched in version 2.53.0.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2026-46546?

It affects 1 product.


Products: Frappe Learning.

## How do I fix CVE-2026-46546?

No fix has been published for CVE-2026-46546 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-46546 being exploited?

There is no known exploitation of CVE-2026-46546 in the wild and no public exploit code.

## Other vulnerabilities in frappe lms

- [CVE-2023-5555](https://insights.sbomify.com/CVE-2023-5555/): Cross-site Scripting (XSS) - Generic in frappe/lms (high 7.1)
- [CVE-2026-34606](https://insights.sbomify.com/CVE-2026-34606/): Stored XSS in Frappe LMS (medium 6.9)
- [CVE-2026-26977](https://insights.sbomify.com/CVE-2026-26977/): Frappe Learning Management System exposes details of unpublished courses to unauthorized users (medium 6.9)
- [CVE-2025-11280](https://insights.sbomify.com/CVE-2025-11280/): Frappe LMS Assignment Picture files direct request (medium 6.3)
- [CVE-2023-42807](https://insights.sbomify.com/CVE-2023-42807/): Frappe LMS SQL Injection Issue on People Page (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-46546 and fix it if it is affected.

What it is: CVE-2026-46546 is a low-severity cross-site scripting vulnerability in frappe lms, published on 9 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-46546 in the wild and no public exploit code.

Affected product: frappe lms. 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-2026-46546/ (Markdown: https://insights.sbomify.com/CVE-2026-46546/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-46546
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-46546
- OSV: https://osv.dev/vulnerability/CVE-2026-46546

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-46546/
Summaries are generated and may contain mistakes; the official description above is the record.