# CVE-2024-45511: Cross-site scripting in n/a

> Reflected XSS in Zimbra Briefcase allows attackers to execute arbitrary JavaScript in victim sessions via crafted URLs.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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:** 20 Nov 2024
- **Updated:** 20 Nov 2024
- **Also known as:** GHSA-fmpp-8f7j-vvr4

## What is CVE-2024-45511?

CVE-2024-45511 is a medium-severity cross-site scripting vulnerability in Synacor Zimbra Collaboration Suite, published on 20 Nov 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

An issue was discovered in Zimbra Collaboration (ZCS) through 10.1. A reflected Cross-Site Scripting (XSS) issue exists through the Briefcase module due to improper sanitization of file content by the OnlyOffice formatter. This occurs when the victim opens a crafted URL pointing to a shared folder containing a malicious file uploaded by the attacker. The vulnerability allows the attacker to execute arbitrary JavaScript in the context of the victim's session.

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

## Which versions are affected by CVE-2024-45511?

It affects 1 product.


Products: Synacor Zimbra Collaboration Suite.

## How do I fix CVE-2024-45511?

No fix has been published for CVE-2024-45511 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-45511 being exploited?

There is no known exploitation of CVE-2024-45511 in the wild and no public exploit code.

## Other vulnerabilities in Synacor Zimbra Collaboration Suite

- [CVE-2024-45519](https://insights.sbomify.com/CVE-2024-45519/): Synacor Zimbra Collaboration Suite (ZCS) Command Execution (critical 10.0, exploited in the wild)
- [CVE-2022-41352](https://insights.sbomify.com/CVE-2022-41352/): Synacor Zimbra Collaboration Suite (ZCS) Arbitrary File Upload (critical 9.8, exploited in the wild)
- [CVE-2022-37042](https://insights.sbomify.com/CVE-2022-37042/): Synacor Zimbra Collaboration Suite (ZCS) Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2022-27924](https://insights.sbomify.com/CVE-2022-27924/): Synacor Zimbra Collaboration Suite (ZCS) Command Injection (critical 9.8, exploited in the wild)
- [CVE-2020-7796](https://insights.sbomify.com/CVE-2020-7796/): Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-45511 and fix it if it is affected.

What it is: CVE-2024-45511 is a medium-severity cross-site scripting vulnerability in Synacor Zimbra Collaboration Suite, published on 20 Nov 2024. 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-2024-45511 in the wild and no public exploit code.

Affected product: Synacor Zimbra Collaboration Suite. 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-2024-45511/ (Markdown: https://insights.sbomify.com/CVE-2024-45511/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-45511
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-45511
- OSV: https://osv.dev/vulnerability/CVE-2024-45511

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-45511/
Summaries are generated and may contain mistakes; the official description above is the record.