CVE-2016-10516: Pallets Werkzeug cross-site scripting vulnerability

CVE-2016-10516 · Severity: low · CVSS 3 · Published 2017-10-23

Cross-site scripting (XSS) vulnerability in the render_full function in debug/tbtools.py in the debugger in Pallets Werkzeug before 0.11.11 (as used in Pallets Flask and other products) allows remote attackers to inject arbitrary web script or HTML via a field that contains an exception message.

Technologies: werkzeug (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2016-10516 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2016-10516 being exploited in the wild.
How severe is CVE-2016-10516?
Low severity, with a CVSS score of 3, published 23 October 2017.
Which products and versions are affected?
werkzeug (PyPI) ECOSYSTEM:introduced=0,fixed=0.11.11.
Is there a fix for CVE-2016-10516?
Yes. werkzeug (PyPI): upgrade to 0.11.11 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2016-10516?
Check whether you run werkzeug (PyPI) 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

  • werkzeug (PyPI): upgrade to 0.11.11 or later
    pip install "werkzeug>=0.11.11"

Affected products

  • werkzeug (PyPI) ECOSYSTEM:introduced=0,fixed=0.11.11

Identifiers

  • CVE-2016-10516
  • GHSA-h2fp-xgx6-xh6f
  • PYSEC-2017-43

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