FreeBSD : py-markdown2 -- XSS vulnerability (cf6f3465-e996-4672-9458-ce803f29fdb7)

medium Nessus Plugin ID 180371



The remote FreeBSD host is missing one or more security-related updates.


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.

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


Update the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 180371

File Name: freebsd_pkg_cf6f3465e99646729458ce803f29fdb7.nasl

Version: 1.0

Type: local

Published: 8/31/2023

Updated: 8/31/2023

Risk Information


Risk Factor: Low

Score: 3.8


Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2020-11888


Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:py310-markdown2, p-cpe:/a:freebsd:freebsd:py311-markdown2, p-cpe:/a:freebsd:freebsd:py37-markdown2, p-cpe:/a:freebsd:freebsd:py38-markdown2, p-cpe:/a:freebsd:freebsd:py39-markdown2, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/31/2023

Vulnerability Publication Date: 4/20/2020

Reference Information

CVE: CVE-2020-11888