CVE-2025-0520: ShowDoc unrestricted file upload vulnerability

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

ShowDoc unrestricted file upload vulnerability

Technologies: showdoc/showdoc (Packagist). 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
    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

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