Detections
Analytics

SCA: security update for markdown2 (GHSA-p6h9-gw49-rqm4)

medium Tenable Cloud Security Plugin ID 422586

Description

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

 - An issue was discovered in markdown2 (aka python-markdown2) through 2.3.5. The safe_mode feature, which is
 supposed to sanitize user input against XSS, is flawed and does not escape the input properly. With a
 crafted payload, XSS can be triggered, as demonstrated by omitting the final '>' character from an IMG
 tag. (CVE-2018-5773)

See Also

https://github.com/advisories/GHSA-p6h9-gw49-rqm4

Plugin Details

Severity: Medium

ID: 422586

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 3/28/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 8.67

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2018-5773

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.3

Threat Score: 1.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/12/2018

Vulnerability Publication Date: 1/18/2018

Reference Information

CVE: CVE-2018-5773

cwe: CWE-79