# CVE-2023-6696: Missing authorization in Popup Builder – Create highly converting, mobile friendly marketing popups.

> Subscribers can delete other subscribers and trigger blind SSRF due to missing capability checks and exposed nonces in the Popup Builder plugin.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:** 15 Jun 2024
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-988h-7hff-q3fr

## What is CVE-2023-6696?

CVE-2023-6696 is a high-severity missing authorization vulnerability in popupbuilder Popup Builder – Create highly converting, mobile friendly marketing popups., published on 15 Jun 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to unauthorized access of functionality due to a missing capability check on several functions in all versions up to, and including, 4.3.1. While some functions contain a nonce check, the nonce can be obtained from the profile page of a logged-in user. This allows subscribers to perform several actions including deleting subscribers and perform blind Server-Side Request Forgery.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2023-6696?

It affects 1 product.


Products: Sygnoos Popup Builder.

## How do I fix CVE-2023-6696?

No fix has been published for CVE-2023-6696 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-6696 being exploited?

There is no known exploitation of CVE-2023-6696 in the wild and no public exploit code.

## Other vulnerabilities in popupbuilder Popup Builder – Create highly converting, mobile friendly marketing popups.

- [CVE-2022-0479](https://insights.sbomify.com/CVE-2022-0479/): Popup Builder < 4.1.1 - SQL Injection to Reflected Cross-Site Scripting (critical 9.8)
- [CVE-2020-9006](https://insights.sbomify.com/CVE-2020-9006/): SQL injection in n/a (critical 9.8)
- [CVE-2019-14695](https://insights.sbomify.com/CVE-2019-14695/): SQL injection in n/a (critical 9.8)
- [CVE-2021-25082](https://insights.sbomify.com/CVE-2021-25082/): Popup Builder < 4.0.7 - LFI to RCE (high 8.8)
- [CVE-2023-6294](https://insights.sbomify.com/CVE-2023-6294/): popup-builder < 4.2.6 - Admin+ SSRF & File Read (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-6696 and fix it if it is affected.

What it is: CVE-2023-6696 is a high-severity missing authorization vulnerability in popupbuilder Popup Builder – Create highly converting, mobile friendly marketing popups., published on 15 Jun 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-2023-6696 in the wild and no public exploit code.

Affected product: popupbuilder Popup Builder – Create highly converting, mobile friendly marketing popups.. 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-2023-6696/ (Markdown: https://insights.sbomify.com/CVE-2023-6696/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-6696
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-6696
- OSV: https://osv.dev/vulnerability/CVE-2023-6696

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-6696/
Summaries are generated and may contain mistakes; the official description above is the record.