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.
- 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
- None listed
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
Which versions are affected by CVE-2025-21616?
It affects 1 product.
Products include 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.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
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 Plane allows server side request forgery via /_next/image endpoint
- CVE-2026-30242 Plane: SSRF via Incomplete IP Validation in Webhook URL Serializer
- CVE-2026-46558 Missing authorization in plane
- CVE-2026-39843 Plane has a Server-Side Request Forgery (SSRF) in Favicon Fetching
- CVE-2026-27706 Plane Vulnerable to Full Read SSRF via Favicon Fetching in "Add Link" Feature
Sources
Also known as GHSA-rcg8-g69v-x23j.