# CVE-2020-27852: Gravity Forms stored Cross-Site Scripting (XSS) vulnerability in the survey feature

> Remote attackers can inject malicious scripts into Gravity Forms survey fields, which execute in the browsers of privileged users like administrators.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 20 Jan 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-pjv5-v9gv-3679

## What is CVE-2020-27852?

CVE-2020-27852 is a medium-severity cross-site scripting vulnerability in n/a, published on 20 Jan 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

A stored Cross-Site Scripting (XSS) vulnerability in the survey feature in Rocketgenius Gravity Forms before 2.4.21 allows remote attackers to inject arbitrary web script or HTML via a textarea field. This code is interpreted by users in a privileged role (Administrator, Editor, etc.).

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

## Which versions are affected by CVE-2020-27852?

2 open source packages ship an affected version, including wp-premium/gravityforms. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `wp-premium/gravityforms` | Packagist | From 2.4 | 2.4.21 |
| `wp-premium/gravityforms` | Packagist | From 2.4 | 2.4.21 |

Products: Rocketgenius Gravityforms.

## How do I fix CVE-2020-27852?

Upgrade wp-premium/gravityforms to 2.4.21 or later.

## Is CVE-2020-27852 being exploited?

There is no known exploitation of CVE-2020-27852 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-13764](https://insights.sbomify.com/CVE-2020-13764/): Gravity Forms plugin leak hashed passwords (high 7.5)
- [CVE-2020-27851](https://insights.sbomify.com/CVE-2020-27851/): Gravity Forms stored HTML injection vulnerability (medium 5.4)
- [CVE-2020-27850](https://insights.sbomify.com/CVE-2020-27850/): Gravity Forms stored Cross-Site Scripting (XSS) vulnerability (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-27852 and fix it if it is affected.

What it is: CVE-2020-27852 is a medium-severity cross-site scripting vulnerability in n/a, published on 20 Jan 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-27852 in the wild and no public exploit code.

Affected packages and fixed versions:
- wp-premium/gravityforms (Packagist): affected from 2.4; fixed in 2.4.21
- wp-premium/gravityforms (Packagist): affected from 2.4; fixed in 2.4.21

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-2020-27852/ (Markdown: https://insights.sbomify.com/CVE-2020-27852/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-27852
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-27852
- OSV: https://osv.dev/vulnerability/CVE-2020-27852

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-27852/
Summaries are generated and may contain mistakes; the official description above is the record.