peter bassill · operator
$ cve CVE-2021-29996 JSON

CVE-2021-29996

9.6
CRITICAL · CVSS 3.1 · EPSS 2.8% (pctl 86)

In your normal cycle

Critical by CVSS (9.6), but no sign of active exploitation.

Description

Mark Text through 0.16.3 allows attackers arbitrary command execution. This could lead to Remote Code Execution (RCE) by opening .md files containing a mutation Cross Site Scripting (XSS) payload.

Scoring

CVSS9.6 (CRITICAL, v3.1)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS2.75% — more likely to be exploited than 86% of all CVEs
WeaknessCWE-79
On CISA KEVno
Public exploitnone known
Published2021-04-05
Last modified2026-06-17

Affected (1)

VendorProduct
marktextmarktext

References

→ the Explorer  ·  watch your stack  ·  NVD