# CVE-2025-21616: Plane has a Cross-site scripting (XSS) via SVG image upload

> Authenticated users can upload malicious SVGs as profile images, leading to XSS execution in victims' browsers.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A: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:** 6 Jan 2025
- **Updated:** 7 Jan 2025
- **Also known as:** GHSA-rcg8-g69v-x23j

## What is CVE-2025-21616?

CVE-2025-21616 is a medium-severity cross-site scripting vulnerability in makeplane plane, published on 6 Jan 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Plane is an open-source project management tool. A cross-site scripting (XSS) vulnerability has been identified in Plane versions prior to 0.23. The vulnerability allows authenticated users to upload SVG files containing malicious JavaScript code as profile images, which gets executed in victims' browsers when viewing the profile image.

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

## Which versions are affected by CVE-2025-21616?

It affects 1 product.


Products: Plane Plane.

## How do I fix CVE-2025-21616?

No fix has been published for CVE-2025-21616 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-21616 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-21616 exists.

## Other vulnerabilities in makeplane plane

- [CVE-2024-47830](https://insights.sbomify.com/CVE-2024-47830/): Plane allows server side request forgery via /_next/image endpoint (critical 9.3)
- [CVE-2026-30242](https://insights.sbomify.com/CVE-2026-30242/): Plane: SSRF via Incomplete IP Validation in Webhook URL Serializer (high 8.5)
- [CVE-2026-46558](https://insights.sbomify.com/CVE-2026-46558/): Missing authorization in plane (high 8.3)
- [CVE-2026-39843](https://insights.sbomify.com/CVE-2026-39843/): Plane has a Server-Side Request Forgery (SSRF) in Favicon Fetching (high 7.7)
- [CVE-2026-27706](https://insights.sbomify.com/CVE-2026-27706/): Plane Vulnerable to Full Read SSRF via Favicon Fetching in "Add Link" Feature (high 7.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-21616 and fix it if it is affected.

What it is: CVE-2025-21616 is a medium-severity cross-site scripting vulnerability in makeplane plane, published on 6 Jan 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-21616 exists.

Affected product: makeplane plane. 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-2025-21616/ (Markdown: https://insights.sbomify.com/CVE-2025-21616/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-21616
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-21616
- OSV: https://osv.dev/vulnerability/CVE-2025-21616

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-21616/
Summaries are generated and may contain mistakes; the official description above is the record.