# CVE-2026-45778: Open XDMoD Vulnerable to Reflected Cross-Site Scripting (XSS) in Password Reset

> Authenticated attackers can inject JavaScript via user profiles to execute code in victims' browsers during password reset, leading to account takeover.

- **Severity:** High 8.6 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/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:** 5 Jun 2026
- **Updated:** 8 Jun 2026

## What is CVE-2026-45778?

CVE-2026-45778 is a high-severity cross-site scripting vulnerability in ubccr xdmod, published on 5 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

OpenXDMoD is an open framework for collecting and analyzing HPC metrics. Prior to version 11.0.3, an authenticated attacker can inject malicious JavaScript into their Open XDMoD user profile and abuse the password reset functionality to email a link to an HTML page, which when visited by the victim, reflects and executes the unsanitized payload in the victim's browser, potentially leading to credential capture and Open XDMoD account takeover. All deployments of Open XDMoD prior to 11.0.3 are impacted. This issue was reported privately on 2026-04-06, and at this time there is no evidence that this vulnerability has been exploited in the wild. The vulnerability was patched in Open XDMoD 11.0.3 on 2026-05-12. As a workaround, apply the patch manually.

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

## Which versions are affected by CVE-2026-45778?

It affects 1 product.


Products: Buffalo Open Xdmod.

## How do I fix CVE-2026-45778?

No fix has been published for CVE-2026-45778 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-45778 being exploited?

There is no known exploitation of CVE-2026-45778 in the wild and no public exploit code.

## Other vulnerabilities in ubccr xdmod

- [CVE-2018-16988](https://insights.sbomify.com/CVE-2018-16988/): Auth bypass in n/a (critical 9.8)
- [CVE-2026-45777](https://insights.sbomify.com/CVE-2026-45777/): Open XDMoD Vulnerable to Unauthenticated Remote Code Execution (RCE) via OS Command Injection (critical 9.3)
- [CVE-2026-45779](https://insights.sbomify.com/CVE-2026-45779/): Open XDMoD Vulnerable to Unauthenticated SQL Injection Leading to Full Database Compromise (critical 9.3)
- [CVE-2018-16961](https://insights.sbomify.com/CVE-2018-16961/): Path traversal in n/a (high 7.5)
- [CVE-2018-16960](https://insights.sbomify.com/CVE-2018-16960/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-45778 and fix it if it is affected.

What it is: CVE-2026-45778 is a high-severity cross-site scripting vulnerability in ubccr xdmod, published on 5 Jun 2026. 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-2026-45778 in the wild and no public exploit code.

Affected product: ubccr xdmod. 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-2026-45778/ (Markdown: https://insights.sbomify.com/CVE-2026-45778/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-45778
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-45778
- OSV: https://osv.dev/vulnerability/CVE-2026-45778

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-45778/
Summaries are generated and may contain mistakes; the official description above is the record.