CVE-2019-10905

Parsedown before 1.7.2, when safe mode is used and HTML markup is disabled, might allow attackers to execute arbitrary JavaScript code if a script (already running on the affected page) executes the contents of any element with a specific class. This occurs because spaces are permitted in code block infostrings, which interferes with the intended behavior of a single class name beginning with the language- substring.

CVSS v3 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3 : HIGH

Vector : AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/erusev/parsedown/issues/699	Exploit Issue Tracking Third Party Advisory
https://github.com/erusev/parsedown/releases/tag/1.7.2	Release Notes Third Party Advisory
https://github.com/erusev/parsedown/issues/699	Exploit Issue Tracking Third Party Advisory
https://github.com/erusev/parsedown/releases/tag/1.7.2	Release Notes Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:parsedown:parsedown:*:*:*:*:*:*:*:*

History

21 Nov 2024, 04:20

Type	Values Removed	Values Added
References	~~() https://github.com/erusev/parsedown/issues/699 - Exploit, Issue Tracking, Third Party Advisory~~	() https://github.com/erusev/parsedown/issues/699 - Exploit, Issue Tracking, Third Party Advisory
References	~~() https://github.com/erusev/parsedown/releases/tag/1.7.2 - Release Notes, Third Party Advisory~~	() https://github.com/erusev/parsedown/releases/tag/1.7.2 - Release Notes, Third Party Advisory

Information

Published : 2019-04-06 20:29

Updated : 2024-11-21 04:20

NVD link : CVE-2019-10905

Mitre link : CVE-2019-10905

CVE.ORG link : CVE-2019-10905

JSON object : View

Products Affected

parsedown

parsedown

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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