# CVE-2023-51447: Cross-site scripting (XSS) in the dynamic file uploads

Source: https://junglewise.ai/threats/cve-2023-51447-cross-site-scripting-xss-in-the-dynamic-file-uploads  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-02-20  
License: CC BY 4.0 with a link back

CVE-2023-51447 · Severity: low · CVSS 3.1 · Published 2024-02-20

Cross-site scripting (XSS) in the dynamic file uploads

Technologies: [decidim (RubyGems)](https://junglewise.ai/threats/technologies/rubygems-decidim), [decidim-core (RubyGems)](https://junglewise.ai/threats/technologies/decidim-core). Vendors: [RubyGems](https://junglewise.ai/threats/vendors/rubygems).

## Quick answers

**Is CVE-2023-51447 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2023-51447 being exploited in the wild.

**How severe is CVE-2023-51447?** Low severity, with a CVSS score of 3.1, published 20 February 2024.

**Which products and versions are affected?** decidim (RubyGems) ECOSYSTEM:introduced=0.27.0,fixed=0.27.5; decidim-core (RubyGems) ECOSYSTEM:introduced=0.27.0,fixed=0.27.5.

**Is there a fix for CVE-2023-51447?** Yes. decidim (RubyGems): upgrade to 0.27.5 or later; decidim-core (RubyGems): upgrade to 0.27.5 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2023-51447?** Check whether you run decidim (RubyGems) or decidim-core (RubyGems) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- decidim (RubyGems): upgrade to 0.27.5 or later

  ```sh
  bundle update decidim
  ```

- decidim-core (RubyGems): upgrade to 0.27.5 or later

  ```sh
  bundle update decidim-core
  ```


## Affected products

- decidim (RubyGems) ECOSYSTEM:introduced=0.27.0,fixed=0.27.5
- decidim-core (RubyGems) ECOSYSTEM:introduced=0.27.0,fixed=0.27.5

## Identifiers

- CVE-2023-51447
- GHSA-9w99-78rj-hmxq

## Related threats

- [Decidim decidim-core SSRF in push notification subscriptions](https://junglewise.ai/threats/cve-2026-45573-decidim-decidim-core-ssrf-in-push-notification-subscriptions)
- [Decidim stored XSS in HTML content blocks](https://junglewise.ai/threats/cve-2026-45572-decidim-stored-xss-in-html-content-blocks)
- [Decidim JWT authentication replay across organizations](https://junglewise.ai/threats/cve-2026-45414-decidim-jwt-authentication-replay-across-organizations)
- [Decidim improper access control in Private Data Exports](https://junglewise.ai/threats/cve-2026-45377-decidim-improper-access-control-in-private-data-exports)
- [Decidim decidim-core incorrect privilege assignment in amendments](https://junglewise.ai/threats/cve-2026-40869-decidim-decidim-core-incorrect-privilege-assignment-in-amendments)