# CVE-2026-84260: click5 CRM add-on to Gravity Forms <= 1.0.3 - Unauthenticated Stored XSS via post_notifications

> Unauthenticated attackers can inject malicious scripts via post_notifications, leading to stored XSS against admin users in the click5 CRM add-on.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Oct 2026
- **Updated:** 11 Oct 2026
- **Also known as:** GHSA-9wvg-6mc9-c3cm

## What is CVE-2026-84260?

CVE-2026-84260 is a high-severity cross-site scripting vulnerability in Unknown click5 CRM add-on to Gravity Forms, published on 11 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The click5 CRM add-on to Gravity Forms WordPress plugin through 1.0.3 does not sanitise and escape content submitted through an unauthenticated endpoint before outputting it back in an admin page, leading to Stored XSS which could be used against high privilege users such as admin.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-84260?


## How do I fix CVE-2026-84260?

No fix has been published for CVE-2026-84260 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-84260 being exploited?

There is no known exploitation of CVE-2026-84260 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-84260 and fix it if it is affected.

What it is: CVE-2026-84260 is a high-severity cross-site scripting vulnerability in Unknown click5 CRM add-on to Gravity Forms, published on 11 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-84260 in the wild and no public exploit code.

Affected product: Unknown click5 CRM add-on to Gravity Forms. 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-2026-84260/ (Markdown: https://insights.sbomify.com/CVE-2026-84260/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-84260
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-84260
- OSV: https://osv.dev/vulnerability/CVE-2026-84260

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-84260/
Summaries are generated and may contain mistakes; the official description above is the record.