CVE-2022-21830
Cross-site Scripting in @rocket.chat/livechat
A blind self XSS vulnerability exists in RocketChat LiveChat <v1.9 that could allow an attacker to trick a victim pasting malicious code in their chat instance.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A blind self XSS vulnerability exists in RocketChat LiveChat <v1.9 that could allow an attacker to trick a victim pasting malicious code in their chat instance.
- Record
CVE-2022-21830- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
A blind self XSS vulnerability exists in RocketChat LiveChat <v1.9 that could allow an attacker to trick a victim pasting malicious code in their chat instance.
- Record
CVE-2022-21830- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2022-1759 No score
A blind self XSS vulnerability exists in RocketChat LiveChat <v1.9 that could allow an attacker to trick a victim pasting malicious code in their chat instance.
- Record
EUVD-2022-1759- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hf55-c445-2w97
Cross-site Scripting in @rocket.chat/livechat
A blind self XSS vulnerability exists in RocketChat LiveChat versions lower than 1.9 that could allow an attacker to trick a victim pasting malicious code in their chat instance.
- Record
GHSA-hf55-c445-2w97- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVGHSA-hf55-c445-2w97
Cross-site Scripting in @rocket.chat/livechat
A blind self XSS vulnerability exists in RocketChat LiveChat versions lower than 1.9 that could allow an attacker to trick a victim pasting malicious code in their chat instance.
- Record
GHSA-hf55-c445-2w97- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV No score
A blind self XSS vulnerability exists in RocketChat LiveChat <v1.9 that could allow an attacker to trick a victim pasting malicious code in their chat instance.
- Record
CVE-2022-21830- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
@rocket.chat/livechatnpm |
before 1.9.0 | 1.9.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-21830 is a medium vulnerability (CVSS 6.1) in Rocket.chat Livechat, published April 1, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.77%, the 55th percentile. Fixed in @rocket.chat/livechat 1.9.0.
References
hackerone.com/reports/1091118
nvd.nist.gov/vuln/detail/CVE-2022-21830
github.com/RocketChat/Rocket.Chat.Livechat/pull/558