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CVE-2021-22892

24
FAUCET Score

CVE-2021-22892 is an information disclosure vulnerability affecting Rocket.Chat server versions prior to 3.13, 3.12.2, and 3.11.3. This flaw allows unauthenticated attackers to enumerate and validate email addresses, leading to the disclosure of sensitive user information. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with low complexity and no user interaction, potentially resulting in significant confidentiality impact. Currently, there is no evidence of active exploitation, public exploit code (e.g., Metasploit, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.11.3CPE matchmatch criteria
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*
>= 3.12.0, < 3.12.2CPE matchmatch criteria
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*
3.12.3CPE matchmatch criteria
cpe:2.3:a:rocket.chat:rocket.chat:3.12.3:*:*:*:*:*:*:*
3.12.4CPE matchmatch criteria
cpe:2.3:a:rocket.chat:rocket.chat:3.12.4:*:*:*:*:*:*:*
3.12.5CPE matchmatch criteria
cpe:2.3:a:rocket.chat:rocket.chat:3.12.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.86%
Probability of exploitation in next 30 days
EPSS Percentile
77.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0186 is in the 60th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media 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

Remediation records are not available for this CVE.

References

hackerone.com / reports/1089116
ExploitThird Party Advisory