# CVE-2026-41456: Bludit CMS Reflected XSS via Search Plugin

> Unauthenticated attackers can inject arbitrary JavaScript via the search plugin, potentially stealing session cookies or performing actions on behalf of users.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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:** No
- **Published:** 21 Apr 2026
- **Updated:** 14 Jul 2026
- **Also known as:** GHSA-xmmc-cmm8-3rvm

## What is CVE-2026-41456?

CVE-2026-41456 is a medium-severity cross-site scripting vulnerability in bludit, published on 21 Apr 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

Bludit CMS prior to commit 6732dde contains a reflected cross-site scripting vulnerability in the search plugin that allows unauthenticated attackers to inject arbitrary JavaScript by crafting a malicious search query. Attackers can execute malicious scripts in the browsers of users who visit crafted URLs containing the payload, potentially stealing session cookies or performing actions on behalf of affected users.

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

## Which versions are affected by CVE-2026-41456?


## How do I fix CVE-2026-41456?

No fix has been published for CVE-2026-41456 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-41456 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41456 exists.

Public exploit code:

- Bludit CMS  3.20.0 - Reflected Cross-Site Scripting (exploitdb)
- Implementation of varios cross site scripting payloads to exploit CVE-2026-41456 (github_poc): https://github.com/lowlevelsec/Reflected-XSS-Bludit-CVE-2026-41456
- Bludit CMS <= 3.20.0 - Cross-Site Scripting (nuclei): http/cves/2026/CVE-2026-41456.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-41456 and fix it if it is affected.

What it is: CVE-2026-41456 is a medium-severity cross-site scripting vulnerability in bludit, published on 21 Apr 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41456 exists.

Affected product: bludit. 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-2026-41456/ (Markdown: https://insights.sbomify.com/CVE-2026-41456/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-41456
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41456
- OSV: https://osv.dev/vulnerability/CVE-2026-41456

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-41456/
Summaries are generated and may contain mistakes; the official description above is the record.