What’s Vulnerable › Vulnerabilities

CVE-2021-34190

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-07-06 · updated 2026-06-17
• Weakness: CWE-79

Description

A stored cross site scripting (XSS) vulnerability in index.php?menu=billing_rates of Issabel PBX version 4 allows attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the "Name" or "Prefix" fields under the "Create New Rate" module.

Affected products

• Issabel PBX: 4

References

• https://research.0xdutra.com/posts/research-issabel-stored-xss/
• https://www.youtube.com/watch?v=apJH_D68lZI
• https://research.0xdutra.com/posts/research-issabel-stored-xss/
• https://www.youtube.com/watch?v=apJH_D68lZI

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