# CVE-2024-6883: Missing authorization in Event Espresso – Event Registration & Ticketing Sales

> Authenticated subscribers can modify limited plugin settings due to missing capability checks in the Event Espresso 4 Decaf WordPress plugin.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Aug 2024
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-593p-xc9r-fqp9

## What is CVE-2024-6883?

CVE-2024-6883 is a medium-severity missing authorization vulnerability in eventespresso Event Espresso – Event Registration & Ticketing Sales, published on 21 Aug 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Event Espresso 4 Decaf – Event Registration Event Ticketing plugin for WordPress is vulnerable to limited unauthorized plugin settings modification due to a missing capability check on the saveTimezoneString and some other functions in all versions up to and including 4.10.46.decaf. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify some of the plugin settings.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2024-6883?

It affects 1 product.


Products: Eventespresso Event Espresso.

## How do I fix CVE-2024-6883?

No fix has been published for CVE-2024-6883 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-6883 being exploited?

There is no known exploitation of CVE-2024-6883 in the wild and no public exploit code.

## Other vulnerabilities in eventespresso Event Espresso – Event Registration & Ticketing Sales

- [CVE-2017-1002026](https://insights.sbomify.com/CVE-2017-1002026/): SQL injection in Event Expresso Free (high 8.8)
- [CVE-2020-26153](https://insights.sbomify.com/CVE-2020-26153/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-6883 and fix it if it is affected.

What it is: CVE-2024-6883 is a medium-severity missing authorization vulnerability in eventespresso Event Espresso – Event Registration & Ticketing Sales, published on 21 Aug 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-6883 in the wild and no public exploit code.

Affected product: eventespresso Event Espresso – Event Registration & Ticketing Sales. 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-2024-6883/ (Markdown: https://insights.sbomify.com/CVE-2024-6883/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-6883
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-6883
- OSV: https://osv.dev/vulnerability/CVE-2024-6883

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-6883/
Summaries are generated and may contain mistakes; the official description above is the record.