python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \w+ match succeeds. For example, an attack might use elementname@ or elementname- with an onclick attribute.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \w+ match     succeeds. For example, an attack might use elementname@ or elementname- with an onclick attribute.
    (CVE-2020-11888)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \w+ match
    succeeds. For example, an attack might use elementname@ or elementname- with an onclick attribute.
    (CVE-2020-11888)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the cf6f3465-e996-4672-9458-ce803f29fdb7 advisory.

  - python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \w+ match     succeeds. For example, an attack might use elementname@ or elementname- with an onclick attribute.
    (CVE-2020-11888)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

### python-markdown2 2.3.9 ###

  - [pull #335] Added header support for wiki tables

  - [pull #336] Reset _toc when convert is run

  - [pull #353] XSS fix

  - [pull #350] XSS fix

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for python-markdown2 fixes the following issues :

  - CVE-2020-11888: Fixed unsanitized input for cross-site     scripting (boo#1171379)

ID	Name	Product	Family	Severity
256005	Linux Distros Unpatched Vulnerability : CVE-2020-11888	Nessus	Misc.	medium
422197	SCA: security update for markdown2 (GHSA-fv3h-8x5j-pvgq)	Tenable Cloud Security	SCA Checks	medium
422197	SCA: security update for markdown2 (GHSA-fv3h-8x5j-pvgq)	Tenable Self-Hosted Container Security	SCA Checks	medium
180371	FreeBSD : py-markdown2 -- XSS vulnerability (cf6f3465-e996-4672-9458-ce803f29fdb7)	Nessus	FreeBSD Local Security Checks	medium
136843	Fedora 31 : python-markdown2 (2020-ab379d4b90)	Nessus	Fedora Local Security Checks	medium
136839	Fedora 30 : python-markdown2 (2020-3864f32b3d)	Nessus	Fedora Local Security Checks	medium
136490	openSUSE Security Update : python-markdown2 (openSUSE-2020-651)	Nessus	SuSE Local Security Checks	medium

Detections

Analytics

CVE-2020-11888

medium

Tenable Plugins

medium

medium

medium

medium

medium

medium

medium