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Vulnerability record · CVE-2021-46558 · published 15 February 2022

CVE-2021-46558: Issabel pbx cross-site scripting vulnerability

Issabel · Pbx

Multiple cross-site scripting (XSS) vulnerabilities in the Add User module of Issabel PBX 20200102 allows attackers to execute arbitrary web scripts or HTML via a crafted payload inserted into the username and password fields.

5.4 CVSS 3.1 Medium EPSS 0.56% · top 55.5% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score, v2 3.5
0.56%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Multiple cross-site scripting (XSS) vulnerabilities in the Add User module of Issabel PBX 20200102 allows attackers to execute arbitrary web scripts or HTML via a crafted payload inserted into the username and password fields.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Zeyad-Azima/Issabel-stored-XSS ExploitThird Party Advisory
https://github.com/Zeyad-Azima/Issabel-stored-XSS ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-0986Issabel PBX Asterisk-Cli command injection via Command argumentIssabel PBX 4.0.0 exposes the Asterisk-Cli component at /index.php?menu=asterisk_cli, where the Command argument is passed to a shell without sanitiz…EPSS 58%analysed8.1CVE-2023-37596Issabel pbx cross-site request forgery vulnerabilityCross Site Request Forgery (CSRF) vulnerability in issabel-pbx v.4.0.0-6 allows a remote attacker to cause a denial of service via a crafted script t…EPSS 0.62%8.1CVE-2023-37597Issabel pbx cross-site request forgery vulnerabilityCross Site Request Forgery (CSRF) vulnerability in issabel-pbx v.4.0.0-6 allows a remote attacker to cause a denial of service via the delete user gr…EPSS 0.62%7.5CVE-2023-37599Issabel pbx exposure of resource to wrong sphere vulnerabilityAn issue in issabel-pbx v.4.0.0-6 allows a remote attacker to obtain sensitive information via the modules directoryEPSS 3.6%6.8CVE-2023-34839Issabel pbx cross-site request forgery vulnerabilityA Cross Site Request Forgery (CSRF) vulnerability in Issabel issabel-pbx v.4.0.0-6 allows a remote attacker to gain privileges via a Custom CSRF expl…EPSS 0.66%6.1CVE-2021-43695Issabel pbx cross-site scripting vulnerabilityissabelPBX version 2.11 is affected by a Cross Site Scripting (XSS) vulnerability. In file page.backup_restore.php, the exit function will terminate …EPSS 0.57%4.8CVE-2023-37189Issabel pbx cross-site scripting vulnerabilityA stored cross site scripting (XSS) vulnerability in index.php?menu=billing_rates of Issabel PBX version 4 allows attackers to execute arbitrary web …EPSS 0.74%4.8CVE-2023-37190Issabel pbx cross-site scripting vulnerabilityA stored cross-site scripting (XSS) vulnerability in Issabel issabel-pbx v.4.0.0-6 allows attackers to execute arbitrary web scripts or HTML via a cr…EPSS 0.48%

Source: NIST National Vulnerability Database (record CVE-2021-46558), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.