# CVE-2026-64946: CSRF Bypass Leading to Stored Cross-Site Scripting via Unrestricted SVG Upload in File Manager

> Attackers can achieve stored XSS and administrator account takeover via CSRF and unrestricted SVG upload in the File Manager module.

- **Severity:** High 7.4 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/S:N/AU:Y/R:U/V:C/RE:M/U:Amber`)
- **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:** No
- **Published:** 1 Oct 2026
- **Updated:** 1 Oct 2026
- **Also known as:** GHSA-8c26-h44h-c9rf

## What is CVE-2026-64946?

CVE-2026-64946 is a high-severity cross-site scripting vulnerability in Pandora FMS, published on 1 Oct 2026. 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

A chained CSRF and unrestricted SVG file upload vulnerability in the File Manager module allows stored Cross-Site Scripting, enabling session cookie exfiltration and administrator account takeover. This issue affects Pandora FMS: from 777 onwards.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2026-64946?


## How do I fix CVE-2026-64946?

No fix has been published for CVE-2026-64946 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-64946 being exploited?

There is no known exploitation of CVE-2026-64946 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-64946 and fix it if it is affected.

What it is: CVE-2026-64946 is a high-severity cross-site scripting vulnerability in Pandora FMS, published on 1 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-64946 in the wild and no public exploit code.

Affected product: Pandora FMS. 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-2026-64946/ (Markdown: https://insights.sbomify.com/CVE-2026-64946/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-64946
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-64946
- OSV: https://osv.dev/vulnerability/CVE-2026-64946

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-64946/
Summaries are generated and may contain mistakes; the official description above is the record.