CVE-2020-15159: Cross Site Scripting and RCE in baserCMS

CVE-2020-15159 · Severity: low · CVSS 3.1 · Published 2020-08-28

Cross Site Scripting and RCE in baserCMS

Technologies: baserproject/basercms (Packagist). Vendors: Packagist.

Quick answers

Is CVE-2020-15159 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-15159 being exploited in the wild.
How severe is CVE-2020-15159?
Low severity, with a CVSS score of 3.1, published 28 August 2020.
Which products and versions are affected?
baserproject/basercms (Packagist) ECOSYSTEM:introduced=4.0.0,fixed=4.3.7.
Is there a fix for CVE-2020-15159?
Yes. baserproject/basercms (Packagist): upgrade to 4.3.7 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2020-15159?
Check whether you run baserproject/basercms (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

  • baserproject/basercms (Packagist): upgrade to 4.3.7 or later
    composer require baserproject/basercms:^4.3.7

Affected products

  • baserproject/basercms (Packagist) ECOSYSTEM:introduced=4.0.0,fixed=4.3.7

Identifiers

  • CVE-2020-15159
  • GHSA-673x-f5wx-fxpw

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