# CVE-2026-65048: Ninja Forms Unauthenticated Stored Cross-Site Scripting via Repeatable Fieldset Submission Index

> Unauthenticated attackers can inject scripts via form submissions that execute in admin browsers, leading to account takeover and privilege escalation.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N`)
- **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:** 21 Jul 2026
- **Updated:** 22 Jul 2026
- **Also known as:** GHSA-895j-583x-29ww

## What is CVE-2026-65048?

CVE-2026-65048 is a critical cross-site scripting vulnerability in Saturday Drive Ninja Forms, published on 21 Jul 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

Ninja Forms plugin for WordPress versions 3.10.4 through 3.14.9 contains an unauthenticated stored cross-site scripting vulnerability in the Repeatable Fieldset feature where parseSubmissionIndex() accepts arbitrary strings as submission indexes without numeric validation, and admin_form_element() interpolates the index directly into HTML without escaping. An unauthenticated attacker can submit a public form with a crafted repeater child key containing malicious script payloads, which execute in an administrator's browser when viewing submissions in the WordPress admin panel, enabling session-cookie theft, creation of administrator accounts, installation of malicious plugins, and arbitrary modification of site content.

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

## Which versions are affected by CVE-2026-65048?


## How do I fix CVE-2026-65048?

No fix has been published for CVE-2026-65048 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-65048 being exploited?

There is no known exploitation of CVE-2026-65048 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-65048 and fix it if it is affected.

What it is: CVE-2026-65048 is a critical cross-site scripting vulnerability in Saturday Drive Ninja Forms, published on 21 Jul 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-2026-65048 in the wild and no public exploit code.

Affected product: Saturday Drive Ninja 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-2026-65048/ (Markdown: https://insights.sbomify.com/CVE-2026-65048/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-65048
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-65048
- OSV: https://osv.dev/vulnerability/CVE-2026-65048

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-65048/
Summaries are generated and may contain mistakes; the official description above is the record.