# CVE-2026-24885: Kanboard Affected by Cross-Site Request Forgery (CSRF) via Content-Type Misconfiguration in Project Role Assignment

> An attacker can modify project user roles by tricking an authenticated admin into visiting a malicious site due to missing Content-Type validation.

- **Severity:** Medium 5.7 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/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:** 10 Feb 2026
- **Updated:** 10 Feb 2026
- **Also known as:** GHSA-582j-h4w4-hwr5, UBUNTU-CVE-2026-24885

## What is CVE-2026-24885?

CVE-2026-24885 is a medium-severity vulnerability in kanboard, published on 10 Feb 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

Kanboard is project management software focused on Kanban methodology. Prior to 1.2.50, a Cross-Site Request Forgery (CSRF) vulnerability exists in the ProjectPermissionController within the Kanboard application. The application fails to strictly enforce the application/json Content-Type for the changeUserRole action. Although the request body is JSON, the server accepts text/plain, allowing an attacker to craft a malicious form using the text/plain attribute. Which allows unauthorized modification of project user roles if an authenticated admin visits a malicious site This vulnerability is fixed in 1.2.50.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2026-24885?

It affects 1 product.


Products: Kanboard Kanboard.

## How do I fix CVE-2026-24885?

No fix has been published for CVE-2026-24885 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-24885 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-24885 exists.

## Other vulnerabilities in kanboard

- [CVE-2026-21881](https://insights.sbomify.com/CVE-2026-21881/): Kanboard is Vulnerable to Reverse Proxy Authentication Bypass (critical 9.1)
- [CVE-2025-55010](https://insights.sbomify.com/CVE-2025-55010/): Kanboard Authenticated Admin Remote Code Execution via Unsafe Deserialization of Events (critical 9.1)
- [CVE-2024-51747](https://insights.sbomify.com/CVE-2024-51747/): Arbitrary File Read and Delete in kanboard (critical 9.1)
- [CVE-2024-51748](https://insights.sbomify.com/CVE-2024-51748/): Remote code execution through language setting in kanboard (critical 9.1)
- [CVE-2017-12850](https://insights.sbomify.com/CVE-2017-12850/): Business logic in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-24885 and fix it if it is affected.

What it is: CVE-2026-24885 is a medium-severity vulnerability in kanboard, published on 10 Feb 2026. 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-2026-24885 exists.

Affected product: kanboard. 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-2026-24885/ (Markdown: https://insights.sbomify.com/CVE-2026-24885/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-24885
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-24885
- OSV: https://osv.dev/vulnerability/CVE-2026-24885

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-24885/
Summaries are generated and may contain mistakes; the official description above is the record.