CVE-2021-43963 describes a critical vulnerability in Couchbase Sync Gateway versions 2.7.0 through 2.8.2, where bucket credentials were insecurely stored within sync documents. This flaw allowed authenticated users with read access to elevate their privileges to write access. The vulnerability carries a high CVSS score of 8.1, indicating a network-based attack with low complexity and high impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.7.0, < 2.8.3CPE matchmatch criteria | cpe:2.3:a:couchbase:sync_gateway:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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.