# CVE-2025-0520: ShowDoc unrestricted file upload vulnerability

Source: https://junglewise.ai/threats/cve-2025-0520-showdoc-unrestricted-file-upload-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-04-29  
License: CC BY 4.0 with a link back

CVE-2025-0520 · Severity: medium · CVSS 4 · Published 2025-04-29

ShowDoc unrestricted file upload vulnerability

Technologies: [showdoc/showdoc (Packagist)](https://junglewise.ai/threats/technologies/showdoc-showdoc). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2025-0520 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-0520 being exploited in the wild.

**How severe is CVE-2025-0520?** Medium severity, with a CVSS score of 4, published 29 April 2025.

**Which products and versions are affected?** showdoc/showdoc (Packagist) ECOSYSTEM:introduced=0,fixed=2.8.7.

**Is there a fix for CVE-2025-0520?** Yes. showdoc/showdoc (Packagist): upgrade to 2.8.7 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2025-0520?** Check whether you run showdoc/showdoc (Packagist) 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

- showdoc/showdoc (Packagist): upgrade to 2.8.7 or later

  ```sh
  composer require showdoc/showdoc:^2.8.7
  ```


## Affected products

- showdoc/showdoc (Packagist) ECOSYSTEM:introduced=0,fixed=2.8.7

## Identifiers

- CVE-2025-0520
- GHSA-6jmr-r7p6-f5wr

## Related threats

- [ShowDoc has an Injection vulnerability](https://junglewise.ai/threats/cve-2026-6982-showdoc-has-an-injection-vulnerability)
- [Showdoc XSS Vulnerability](https://junglewise.ai/threats/cve-2018-16342-showdoc-xss-vulnerability)
- [Showdoc Forced Browsing](https://junglewise.ai/threats/cve-2018-19609-showdoc-forced-browsing)
- [Showdoc CSRF Vulnerability](https://junglewise.ai/threats/cve-2018-19621-showdoc-csrf-vulnerability)
- [Showdoc Unauthenticated Access](https://junglewise.ai/threats/cve-2018-19620-showdoc-unauthenticated-access)