Cross Site Scripting (XSS) exists in NCH Axon PBX v2.22 and earlier via the blacklist IP address (stored).
Priority LOW 25CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
Cross Site Scripting (XSS) exists in NCH Axon PBX v2.22 and earlier via the blacklist IP address (stored).
Why it matters now
EPSS 0.00589 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nchsoftware:axon_pbx:*:*:*:*:*:*:*:* | up to 2.22 | Vulnerable | Nchsoftware |
- cpe:2.3:a:nchsoftware:axon_pbx:*:*:*:*:*:*:*:* Versions up to 2.22 Vulnerable ·Nchsoftware
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-37456
- 2026-10-03 Alias added: GHSA-wr7f-jq3g-39hr
References
More Nchsoftware Axon Pbx vulnerabilities
- TI-2021-15392 Cross Site Scripting (XSS) exists in NCH Axon PBX v2.22 and earlier via /ipblacklist?errorip= (reflected). CVSS 3.1MEDIUM 5.4
- TI-2021-15391 Cross Site Scripting (XSS) exists in NCH Axon PBX v2.22 and earlier via /extensionsinstruction?id= (reflected). CVSS 3.1MEDIUM 5.4
- TI-2021-15390 Cross Site Scripting (XSS) exists in NCH Axon PBX v2.22 and earlier via /planprop?id= (reflected). CVSS 3.1MEDIUM 5.4
- TI-2021-15389 Cross Site Scripting (XSS) exists in NCH Axon PBX v2.22 and earlier via the customer name field (stored). CVSS 3.1MEDIUM 5.4
- TI-2021-15388 Cross Site Scripting (XSS) exists in NCH Axon PBX v2.22 and earlier via the primary phone field (stored). CVSS 3.1MEDIUM 5.4
- TI-2021-15387 Cross Site Scripting (XSS) exists in NCH Axon PBX v2.22 and earlier via the SipRule field (stored). CVSS 3.1MEDIUM 5.4
Sources
- CVE-2021-37456 · CVE Program
- CVE-2021-37456 · NVD
- FIRST EPSS
- GHSA-wr7f-jq3g-39hr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences