# GHSA-4v57-pwvf-x35j: Zendframework potential Cross-site Scripting vector in `Zend_Service_ReCaptcha_MailHide`

> An attacker can inject malicious scripts via the email argument in Zend_Service_ReCaptcha_MailHide due to improper encoding, affecting users viewing the CAPTCHA.

- **Severity:** Not scored
- **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:** Yes
- **Published:** 7 Jun 2024

## What is GHSA-4v57-pwvf-x35j?

GHSA-4v57-pwvf-x35j is a cross-site scripting vulnerability in zendframework/zendframework1, published on 7 Jun 2024. 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

`Zend_Service_ReCaptcha_MailHide` had a potential XSS vulnerability. Due to the fact that the email address was never validated, and because its use of `htmlentities()` did not include the encoding argument, it was potentially possible for a malicious user aware of the issue to inject a specially crafted multibyte string as an attack via the CAPTCHA's email argument

## Which versions are affected by GHSA-4v57-pwvf-x35j?

6 open source packages ship an affected version, including zendframework/zendframework1.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `zendframework/zendframework1` | Packagist | From 1.7.0 | 1.7.9 |
| `zendframework/zendframework1` | Packagist | From 1.7.0 | 1.7.9 |
| `zendframework/zendframework1` | Packagist | From 1.8.0 | 1.8.5 |
| `zendframework/zendframework1` | Packagist | From 1.8.0 | 1.8.5 |
| `zendframework/zendframework1` | Packagist | From 1.9.0 | 1.9.7 |
| `zendframework/zendframework1` | Packagist | From 1.9.0 | 1.9.7 |

## How do I fix GHSA-4v57-pwvf-x35j?

Upgrade zendframework/zendframework1 to a fixed version for your release line: 1.7.9, 1.8.5 or 1.9.7.

## Is GHSA-4v57-pwvf-x35j being exploited?

There is no known exploitation of GHSA-4v57-pwvf-x35j in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GHSA-4v57-pwvf-x35j and fix it if it is affected.

What it is: GHSA-4v57-pwvf-x35j is a cross-site scripting vulnerability in zendframework/zendframework1, published on 7 Jun 2024. 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 GHSA-4v57-pwvf-x35j in the wild and no public exploit code.

Affected packages and fixed versions:
- zendframework/zendframework1 (Packagist): affected from 1.7.0; fixed in 1.7.9
- zendframework/zendframework1 (Packagist): affected from 1.7.0; fixed in 1.7.9
- zendframework/zendframework1 (Packagist): affected from 1.8.0; fixed in 1.8.5
- zendframework/zendframework1 (Packagist): affected from 1.8.0; fixed in 1.8.5
- zendframework/zendframework1 (Packagist): affected from 1.9.0; fixed in 1.9.7
- zendframework/zendframework1 (Packagist): affected from 1.9.0; fixed in 1.9.7

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/GHSA-4v57-pwvf-x35j/ (Markdown: https://insights.sbomify.com/GHSA-4v57-pwvf-x35j/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GHSA-4v57-pwvf-x35j

---
From sbomify Insights: https://insights.sbomify.com/GHSA-4v57-pwvf-x35j/
Summaries are generated and may contain mistakes; the official description above is the record.