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CVE-2019-10905

N/A
Published: April 6, 2019 at 07:59 PM UTC
Updated: June 17, 2026 at 02:11 AM UTC
1 product affected across 1 vendorParsedown

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Severity
N/A
Exploit prediction
EPSS 1%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Parsedown· Parsedown
95%
v < 1.7.2
Affected range stops below 1.7.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/erusev/parsedown/issues/699
x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/erusev/parsedown/releases/tag/1.7.2

CVSS

6.8MEDIUM[email protected]
Confidentiality
PARTIAL
Integrity
PARTIAL
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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