CVE-2021-4132 json
Cross-site Scripting (XSS) - Stored in livehelperchat/livehelperchat
published 2021-12-17 4 y ago modified 2026-06-17 4 mo ago also BIT-livehelperchat-2021-4132 , EUVD-2022-0576 , GHSA-f7xw-46vh-5jw2
- cvss
- 7.3
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
livehelperchat is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Patch / fix
- packagist remdex/livehelperchat 3.91
- bitnami livehelperchat 3.90.0
Exploit prediction
0.66% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- huntr.dev https://huntr.dev/bounties/7eb80e7c-bb7a-478d-9760-0ea2fa9dc0c2 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.3 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H |
| GitHub | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| OSV | 3.0 | 7.3 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | remdex/livehelperchat | <3.91 |
3.91 |
| bitnami | livehelperchat | <3.90.0 |
3.90.0 |
Affected products
- livehelperchat livehelperchat/livehelperchat
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/livehelperchat/livehelperchat/commit/55b1e3bf62c564db7c919f5293ec1e755c2958d6
web, patch, third-party-advisory
-
huntr.dev
/bounties/7eb80e7c-bb7a-478d-9760-0ea2fa9dc0c2
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-4132
advisory
-
github.com
/livehelperchat/livehelperchat
package
Sources
- CVE List CVE-2021-4132
- GitHub Advisory GHSA-f7xw-46vh-5jw2
- NVD CVE-2021-4132
- OSV BIT-livehelperchat-2021-4132
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.