# CVE-2025-57880: Potential XSS in Extension:BlueSpiceWhoIsOnline

> Cross-site scripting vulnerability in BlueSpice WhoIsOnline extension allows attackers to inject malicious scripts, potentially compromising user sessions and data.

- **Severity:** Medium 5.9 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/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:** 19 Sep 2025
- **Updated:** 19 Sep 2025
- **Also known as:** GHSA-47gw-9v4f-8f2g

## What is CVE-2025-57880?

CVE-2025-57880 is a medium-severity cross-site scripting vulnerability in Hallo Welt! GmbH BlueSpice, published on 19 Sep 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

Improper Encoding or Escaping of Output vulnerability in Hallo Welt! GmbH BlueSpice (Extension:BlueSpiceWhoIsOnline) allows Cross-Site Scripting (XSS).
This issue affects BlueSpice: from 5 through 5.1.1.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-116 (Improper Encoding or Escaping of Output)

## Which versions are affected by CVE-2025-57880?

It affects 1 product.


Products: Hallowelt Bluespice.

## How do I fix CVE-2025-57880?

No fix has been published for CVE-2025-57880 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-57880 being exploited?

There is no known exploitation of CVE-2025-57880 in the wild and no public exploit code.

## Other vulnerabilities in Hallo Welt! GmbH BlueSpice

- [CVE-2025-46703](https://insights.sbomify.com/CVE-2025-46703/): Potential XSS in Extension:AtMentions (medium 5.9)
- [CVE-2025-48007](https://insights.sbomify.com/CVE-2025-48007/): Potential XSS in Extension:BlueSpiceAvatars (medium 5.9)
- [CVE-2025-58114](https://insights.sbomify.com/CVE-2025-58114/): Potential XSS in Extension:CognitiveProcessDesigner (medium 5.9)
- [CVE-2022-2510](https://insights.sbomify.com/CVE-2022-2510/): Potential XSS on Special:SearchCenter (medium 4.3)
- [CVE-2022-2511](https://insights.sbomify.com/CVE-2022-2511/): Potential XSS in title URL parameter (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-57880 and fix it if it is affected.

What it is: CVE-2025-57880 is a medium-severity cross-site scripting vulnerability in Hallo Welt! GmbH BlueSpice, published on 19 Sep 2025. 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-2025-57880 in the wild and no public exploit code.

Affected product: Hallo Welt! GmbH BlueSpice. 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-2025-57880/ (Markdown: https://insights.sbomify.com/CVE-2025-57880/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-57880
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-57880
- OSV: https://osv.dev/vulnerability/CVE-2025-57880

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-57880/
Summaries are generated and may contain mistakes; the official description above is the record.