CVE-2020-26138: FormField with square brackets in field name skips validation

CVE-2020-26138 · Severity: low · CVSS 3.1 · Published 2022-03-26

FormField with square brackets in field name skips validation

Technologies: silverstripe/framework (Packagist). Vendors: Packagist.

Quick answers

Is CVE-2020-26138 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-26138 being exploited in the wild.
How severe is CVE-2020-26138?
Low severity, with a CVSS score of 3.1, published 26 March 2022.
Which products and versions are affected?
silverstripe/framework (Packagist) ECOSYSTEM:introduced=3.0.0,fixed=4.7.4.
Is there a fix for CVE-2020-26138?
Yes. silverstripe/framework (Packagist): upgrade to 4.7.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2020-26138?
Check whether you run silverstripe/framework (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

  • silverstripe/framework (Packagist): upgrade to 4.7.4 or later
    composer require silverstripe/framework:^4.7.4

Affected products

  • silverstripe/framework (Packagist) ECOSYSTEM:introduced=3.0.0,fixed=4.7.4

Identifiers

  • CVE-2020-26138
  • GHSA-7mv4-4xpg-xq44

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