CVE-2021-33829 is a medium-severity cross-site scripting (XSS) vulnerability in CKEditor 4, versions 4.14.0 through 4.16.x before 4.16.1, also affecting products like Debian and Drupal. Attackers can inject malicious JavaScript via crafted comments due to mishandling of the "--!>" sequence. While there is no evidence of active exploitation or KEV listing, a Nuclei template exists for Drupal 7 CKEditor XSS, and the vulnerability has a high FAUCET Risk Score of 97/100, despite minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.14.0, < 4.16.1CPE matchmatch criteria | cpe:2.3:a:ckeditor:ckeditor:*:*:*:*:*:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | ||
35CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | ||
>= 8.9.0, < 8.9.16CPE matchmatch criteria | cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:* |
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.