CVE-2021-43817 is a reflected Cross-Site Scripting (XSS) vulnerability affecting Collabora Online versions prior to 6.4.16 and 4.2.20. An attacker could inject unescaped HTML during iframe creation, allowing script execution within the Collabora Online iframe context. This medium severity vulnerability (CVSS 6.1) has a network attack vector and low attack complexity, potentially leading to the compromise of limited user settings and session authentication tokens. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.2.20CPE matchmatch criteria | cpe:2.3:a:collabora:online:*:*:*:*:*:*:*:* | ||
>= 6.4.0, < 6.4.16CPE matchmatch criteria | cpe:2.3:a:collabora:online:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/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.