# CVE-2017-6955: Business logic in n/a

> Attackers can modify invitation email content to facilitate social engineering attacks against users of the Invite Anyone 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:** 17 Mar 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-3gh5-8j6v-4qqc

## What is CVE-2017-6955?

CVE-2017-6955 is a medium-severity vulnerability in n/a, published on 17 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in by-email/by-email.php in the Invite Anyone plugin before 1.3.15 for WordPress. A user is able to change the subject and the body of the invitation mail that should be immutable, which facilitates a social engineering attack.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2017-6955?

It affects 1 product.


Products: Teleogistic Invite Anyone.

## How do I fix CVE-2017-6955?

No fix has been published for CVE-2017-6955 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-6955 being exploited?

There is no known exploitation of CVE-2017-6955 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2024-43327](https://insights.sbomify.com/CVE-2024-43327/): WordPress Invite Anyone plugin <= 1.4.7 - Reflected Cross Site Scripting (XSS) vulnerability (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-6955 and fix it if it is affected.

What it is: CVE-2017-6955 is a medium-severity vulnerability in n/a, published on 17 Mar 2017. 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-2017-6955 in the wild and no public exploit code.

Affected product: n/a. 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-2017-6955/ (Markdown: https://insights.sbomify.com/CVE-2017-6955/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-6955
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-6955
- OSV: https://osv.dev/vulnerability/CVE-2017-6955

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-6955/
Summaries are generated and may contain mistakes; the official description above is the record.