# CVE-2026-0673: Element Pack Addons for Elementor <= 8.3.15 - Unauthenticated SMTP Header Injection

> Unauthenticated attackers can inject arbitrary email headers into contact form emails via insufficient input sanitization in the Element Pack Addons plugin.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Aug 2026
- **Updated:** 6 Aug 2026
- **Also known as:** GHSA-74gv-xjcv-gwc2

## What is CVE-2026-0673?

CVE-2026-0673 is a medium-severity vulnerability in bdthemes Element Pack Addons for Elementor – Elementor Widgets, Elementor Templates, Elementor Addons, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Element Pack Addons for Elementor plugin for WordPress is vulnerable to Email Header Injection in all versions up to, and including, 8.3.15 via the `element_pack_contact_form` AJAX action. This is due to insufficient sanitization of newline characters in user-supplied input that gets concatenated into email headers. This makes it possible for unauthenticated attackers to inject arbitrary email headers into emails sent by the contact form.

Weakness: CWE-93 (Improper Neutralization of CRLF Sequences)

## Which versions are affected by CVE-2026-0673?


## How do I fix CVE-2026-0673?

No fix has been published for CVE-2026-0673 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-0673 being exploited?

There is no known exploitation of CVE-2026-0673 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-0673 and fix it if it is affected.

What it is: CVE-2026-0673 is a medium-severity vulnerability in bdthemes Element Pack Addons for Elementor – Elementor Widgets, Elementor Templates, Elementor Addons, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-0673 in the wild and no public exploit code.

Affected product: bdthemes Element Pack Addons for Elementor – Elementor Widgets, Elementor Templates, Elementor Addons. 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-2026-0673/ (Markdown: https://insights.sbomify.com/CVE-2026-0673/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-0673
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-0673
- OSV: https://osv.dev/vulnerability/CVE-2026-0673

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-0673/
Summaries are generated and may contain mistakes; the official description above is the record.