CVE-2020-15249: Stored XSS by authenticated backend user with access to upload files

CVE-2020-15249 · Severity: low · CVSS 3.1 · Published 2020-11-23

Stored XSS by authenticated backend user with access to upload files

Technologies: october/backend (Packagist). Vendors: Packagist.

Quick answers

Is CVE-2020-15249 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-15249 being exploited in the wild.
How severe is CVE-2020-15249?
Low severity, with a CVSS score of 3.1, published 23 November 2020.
Which products and versions are affected?
october/backend (Packagist) ECOSYSTEM:introduced=1.0.319,fixed=1.0.469.
Is there a fix for CVE-2020-15249?
Yes. october/backend (Packagist): upgrade to 1.0.469 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2020-15249?
Check whether you run october/backend (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

  • october/backend (Packagist): upgrade to 1.0.469 or later
    composer require october/backend:^1.0.469

Affected products

  • october/backend (Packagist) ECOSYSTEM:introduced=1.0.319,fixed=1.0.469

Identifiers

  • CVE-2020-15249
  • GHSA-fx3v-553x-3c4q

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