# DRUPAL-CONTRIB-2023-020: This module enables you to define a 'weekly office hours' field type, and add a field to any Content type, in order to display the weekly op

> An attacker with display administration or content editing permissions can inject malicious scripts via the weekly office hours field, potentially compromising user sessions.

- **Severity:** Not scored
- **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:** 14 Jun 2023

## What is DRUPAL-CONTRIB-2023-020?

DRUPAL-CONTRIB-2023-020 is a cross-site scripting vulnerability in drupal/office_hours, published on 14 Jun 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

This module enables you to define a 'weekly office hours' field type, and add a field to any Content type, in order to display the weekly opening hours for a location.

The module doesn't sufficiently filter user-supplied text leading to a Cross Site Scripting (XSS) vulnerability.

This vulnerability is mitigated by the fact that an attacker needs additional permissions. The vulnerability can be exploited by an attacker with a role with the permission "administer display" regardless of other configurations. In some scenarios, the vulnerability can be exploited by a user with "Create content" or "Edit content" for a relevant Content type.

## Which versions are affected by DRUPAL-CONTRIB-2023-020?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `drupal/office_hours` | Packagist:https://packages.drupal.org/8 | All versions | 1.11.0 |

## How do I fix DRUPAL-CONTRIB-2023-020?

Upgrade to a fixed version.

## Is DRUPAL-CONTRIB-2023-020 being exploited?

There is no known exploitation of DRUPAL-CONTRIB-2023-020 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for DRUPAL-CONTRIB-2023-020 and fix it if it is affected.

What it is: DRUPAL-CONTRIB-2023-020 is a cross-site scripting vulnerability in drupal/office_hours, published on 14 Jun 2023. 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 DRUPAL-CONTRIB-2023-020 in the wild and no public exploit code.

Affected product: drupal/office_hours. 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/DRUPAL-CONTRIB-2023-020/ (Markdown: https://insights.sbomify.com/DRUPAL-CONTRIB-2023-020/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/DRUPAL-CONTRIB-2023-020

---
From sbomify Insights: https://insights.sbomify.com/DRUPAL-CONTRIB-2023-020/
Summaries are generated and may contain mistakes; the official description above is the record.