CVE-2020-15275: malicious SVG attachment causing stored XSS vulnerability

CVE-2020-15275 · Severity: low · CVSS 3.1 · Published 2020-11-11

MoinMoin is a wiki engine. In MoinMoin before version 1.9.11, an attacker with write permissions can upload an SVG file that contains malicious javascript. This javascript will be executed in a user's browser when the user is viewing that SVG file on the wiki. Users are strongly advised to upgrade to a patched version. MoinMoin Wiki 1.9.11 has the necessary fixes and also contains other important fixes.

Technologies: moin (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2020-15275 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-15275 being exploited in the wild.
How severe is CVE-2020-15275?
Low severity, with a CVSS score of 3.1, published 11 November 2020.
Which products and versions are affected?
moin (PyPI) ECOSYSTEM:introduced=0,fixed=1.9.11, GIT:introduced=0,fixed=31de9139d0aabc171e94032168399b4a0b2a88a2|ECOSYSTEM:introduced=0,fixed=1.9.11.
Is there a fix for CVE-2020-15275?
Yes. moin (PyPI): upgrade to 1.9.11 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2020-15275?
Check whether you run moin (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

  • moin (PyPI): upgrade to 1.9.11 or later
    pip install "moin>=1.9.11"

Affected products

  • moin (PyPI) ECOSYSTEM:introduced=0,fixed=1.9.11, GIT:introduced=0,fixed=31de9139d0aabc171e94032168399b4a0b2a88a2|ECOSYSTEM:introduced=0,fixed=1.9.11

Identifiers

  • CVE-2020-15275
  • GHSA-4q96-6xhq-ff43
  • PYSEC-2020-241

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.