# CVE-2025-48366: GroupOffice's Blind Stored XSS in Phone Number Field Enables Forced Redirect and Unauthorized Actions

> Attackers can inject persistent JavaScript into user phone fields, enabling forced redirects and unauthorized actions when victims view the Address Book.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 May 2025
- **Updated:** 22 May 2025
- **Also known as:** GHSA-phhq-3h8f-qxpx

## What is CVE-2025-48366?

CVE-2025-48366 is a medium-severity cross-site scripting vulnerability in Intermesh groupoffice, published on 22 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.119 and 25.0.20, a stored and blind XSS vulnerability exists in the Phone Number field of the user profile within the GroupOffice application. This allows a malicious actor to inject persistent JavaScript payloads, which are triggered in the context of another user when they view the Address Book. Successful exploitation enables actions such as forced redirects, unauthorized fetch requests, or other arbitrary JavaScript execution without user interaction. Versions 6.8.119 and 25.0.20 contain a fix for the issue.

Weakness: CWE-87 (Improper Neutralization of Alternate XSS Syntax), CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-48366?

It affects 1 product.


Products: Intermesh Group-Office.

## How do I fix CVE-2025-48366?

No fix has been published for CVE-2025-48366 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-48366 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-48366 exists.

## Other vulnerabilities in Intermesh groupoffice

- [CVE-2026-34838](https://insights.sbomify.com/CVE-2026-34838/): Group-Office: Authenticated Remote Code Execution via PHP Insecure Deserialization in `AbstractSettingsCollection` (critical 10.0)
- [CVE-2026-27947](https://insights.sbomify.com/CVE-2026-27947/): Group-Office Vulnerable to Remote Code Execution (RCE) (critical 9.4)
- [CVE-2026-33755](https://insights.sbomify.com/CVE-2026-33755/): Authenticated SQL Injection in Contact/query addressBookIds filter (high 8.8)
- [CVE-2010-3428](https://insights.sbomify.com/CVE-2010-3428/): SQL injection in n/a (high 7.5)
- [CVE-2026-27832](https://insights.sbomify.com/CVE-2026-27832/): Group-Office Has Authenticated SQL Injection in advancedQueryData.comparator (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-48366 and fix it if it is affected.

What it is: CVE-2025-48366 is a medium-severity cross-site scripting vulnerability in Intermesh groupoffice, published on 22 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-48366 exists.

Affected product: Intermesh groupoffice. 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-2025-48366/ (Markdown: https://insights.sbomify.com/CVE-2025-48366/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-48366
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-48366
- OSV: https://osv.dev/vulnerability/CVE-2025-48366

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-48366/
Summaries are generated and may contain mistakes; the official description above is the record.