CVE-2022-21830 json
Cross-site Scripting in @rocket.chat/livechat
published 2022-04-01 4 y ago modified 2026-06-17 4 mo ago also GHSA-hf55-c445-2w97 , EUVD-2022-1759
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm @rocket.chat/livechat 1.9.0
- rocket.chat livechat 1.9.0
Exploit prediction
0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- hackerone.com https://hackerone.com/reports/1091118 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | @rocket.chat/livechat | <1.9.0 |
1.9.0 |
Affected products
- n/a Rocket.chat Livechat
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/RocketChat/Rocket.Chat.Livechat/pull/558
web
-
hackerone.com
/reports/1091118
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2022-21830
advisory
-
github.com
/RocketChat/Rocket.Chat.Livechat
package
-
github.com
/RocketChat/Rocket.Chat.Livechat/releases/tag/v1.9.0
web
Sources
- CVE List CVE-2022-21830
- GitHub Advisory GHSA-hf55-c445-2w97
- NVD CVE-2022-21830
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.