CVE-2021-20727 describes a cross-site scripting (XSS) vulnerability in Zettlr versions 0.20.0 through 1.8.8. An attacker can exploit this by tricking a user into loading a malicious file or code snippet containing an invalid iframe, leading to arbitrary script execution. This vulnerability has a CVSS score of 6.1 (Medium), indicating a network-based attack with low complexity requiring user interaction, potentially impacting confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0.20.0, <= 1.8.8CPE matchmatch criteria | cpe:2.3:a:zettlr:zettlr:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.