CVE-2021-26835

MEDIUM
6.1
CVSS Score
Published: June 18, 2021 at 11:46 AM UTC
Updated: June 17, 2026 at 03:43 AM UTC
1 product affected across 1 vendorZettlr

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Severity
MEDIUM6.1
Exploit prediction
EPSS 1%

Description

No filtering of cross-site scripting (XSS) payloads in the markdown-editor in Zettlr 1.8.7 allows attackers to perform remote code execution via a crafted file.

Affected

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

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory
https://github.com/Zettlr/Zettlr/issues/1716
x_refsource_MISCRelease NotesThird Party Advisory
https://github.com/Zettlr/Zettlr/releases/tag/v1.8.9

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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