# CVE-2026-57532: Cross-site scripting in pretix

> An attacker can inject JavaScript into the browser context of another backend user via malicious PDF layout specifications, potentially leading to account takeover.

- **Severity:** High 8.8 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 25 Jun 2026
- **Updated:** 25 Jun 2026
- **Also known as:** GHSA-4jgq-8mwg-w9q9

## What is CVE-2026-57532?

CVE-2026-57532 is a high-severity cross-site scripting vulnerability in pretix, published on 25 Jun 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Malicious HTML content contained in the layout specification of a PDF 
ticket or badge layout was executed when the PDF editor is opened in the
 browser. This could allow one backend user to inject JavaScript into 
the browser context of another backend user. Due to requirements of the 
PDF rendering and editing libraries used, this is one of the few pages 
in our backend that do not have a strong Content-Security-Policy that 
would render this capability useless for most scenarios.

Weakness: CWE-80 (Improper Neutralization of Script-Related HTML Tags in a Web Page)

## Which versions are affected by CVE-2026-57532?


## How do I fix CVE-2026-57532?

No fix has been published for CVE-2026-57532 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-57532 being exploited?

There is no known exploitation of CVE-2026-57532 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-57532 and fix it if it is affected.

What it is: CVE-2026-57532 is a high-severity cross-site scripting vulnerability in pretix, published on 25 Jun 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-57532 in the wild and no public exploit code.

Affected product: pretix. 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-2026-57532/ (Markdown: https://insights.sbomify.com/CVE-2026-57532/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-57532
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-57532
- OSV: https://osv.dev/vulnerability/CVE-2026-57532

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-57532/
Summaries are generated and may contain mistakes; the official description above is the record.