CVE-2021-46558

Name: CVE-2021-46558
Creator: NVD / NIST
Published: 2022-02-15T11:15:08.12+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.55%

Last modified Jun 17, 2026

CVE-2021-46558 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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.. EPSS estimates a 0.55% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.55%

42.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Issabel	Pbx	20200102

References

https://github.com/Zeyad-Azima/Issabel-stored-XSSExploit, Third Party Advisory
https://github.com/Zeyad-Azima/Issabel-stored-XSSExploit, Third Party Advisory

Timeline

Published: Feb 15, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-46558?

How severe is CVE-2021-46558?

CVE-2021-46558 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.

How do I fix CVE-2021-46558?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-46558?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST