CVE-2023-32685 Clipboard based cross-site scripting (blocked with default CSP) in Kanboard
Attackers can inject malicious HTML via clipboard content in Kanboard, leading to XSS if CSP is misconfigured, requiring a patch to mitigate.
- 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-2023-32685?
CVE-2023-32685 is a medium-severity cross-site scripting vulnerability in kanboard, published on 30 May 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Kanboard is project management software that focuses on the Kanban methodology. Due to improper handling of elements under the `contentEditable` element, maliciously crafted clipboard content can inject arbitrary HTML tags into the DOM. A low-privileged attacker with permission to attach a document on a vulnerable Kanboard instance can trick the victim into pasting malicious screenshot data and achieve cross-site scripting if CSP is improperly configured. This issue has been patched in version 1.2.29.
Weakness: CWE-79
Which versions are affected by CVE-2023-32685?
It affects 1 product.
Products include Kanboard Kanboard.
How do I fix CVE-2023-32685?
No fix has been published for CVE-2023-32685 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-2023-32685 being exploited?
There is no known exploitation of CVE-2023-32685 in the wild and no public exploit code.
Other vulnerabilities in kanboard
- CVE-2026-21881 Kanboard is Vulnerable to Reverse Proxy Authentication Bypass
- CVE-2025-55010 Kanboard Authenticated Admin Remote Code Execution via Unsafe Deserialization of Events
- CVE-2024-51747 Arbitrary File Read and Delete in kanboard
- CVE-2024-51748 Remote code execution through language setting in kanboard
- CVE-2017-12850 Business logic in n/a
Sources
Also known as GHSA-hjmw-gm82-r4gv.