# CVE-2025-63499: Cross-site scripting in n/a

> Attackers can inject malicious scripts via the theme parameter in SOGo, potentially leading to session hijacking or code execution.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 4 Dec 2025
- **Updated:** 5 Dec 2025
- **Also known as:** DEBIAN-CVE-2025-63499, GHSA-mrxw-g8fq-xg2c, UBUNTU-CVE-2025-63499

## What is CVE-2025-63499?

CVE-2025-63499 is a medium-severity cross-site scripting vulnerability in n/a, published on 4 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Alinto Sogo 5.12.3 is vulnerable to Cross Site Scripting (XSS) via the theme parameter.

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

## Which versions are affected by CVE-2025-63499?

It affects 1 product.


Products: Alinto Sogo.

## How do I fix CVE-2025-63499?

Upgrade to a fixed version.

## Is CVE-2025-63499 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63499 exists.

Public exploit code:

-  POC for CVE-2025-63499 (github_poc): https://github.com/poblaguev-tot/CVE-2025-63499

## Other vulnerabilities in n/a

- [CVE-2015-5395](https://insights.sbomify.com/CVE-2015-5395/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2016-6188](https://insights.sbomify.com/CVE-2016-6188/): Denial of service in n/a (medium 6.5)
- [CVE-2025-71276](https://insights.sbomify.com/CVE-2025-71276/): Cross-site scripting in SOGo (medium 6.4)
- [CVE-2025-63498](https://insights.sbomify.com/CVE-2025-63498/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2024-24510](https://insights.sbomify.com/CVE-2024-24510/): Cross Site Scripting vulnerability in Alinto SOGo before 5.10.0 allows a remote attacker to execute arbitrary code via the import function to the mail component. (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-63499 and fix it if it is affected.

What it is: CVE-2025-63499 is a medium-severity cross-site scripting vulnerability in n/a, published on 4 Dec 2025. An attacker can exploit it over the internet without logging in, 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-2025-63499 exists.

Affected product: n/a. 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-2025-63499/ (Markdown: https://insights.sbomify.com/CVE-2025-63499/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-63499
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-63499
- OSV: https://osv.dev/vulnerability/CVE-2025-63499

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-63499/
Summaries are generated and may contain mistakes; the official description above is the record.