CVE-2021-43695

Severity: medium (CVSS 6.1 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: 2021-11-29 · updated 2026-06-17
Weakness: CWE-79

Description

issabelPBX version 2.11 is affected by a Cross Site Scripting (XSS) vulnerability. In file page.backup_restore.php, the exit function will terminate the script and print the message to the user. The message will contain $_REQUEST without sanitization, then there is a XSS vulnerability.

Affected products

Issabel PBX: 2.11

References

https://github.com/IssabelFoundation/issabelPBX/issues/33
https://github.com/IssabelFoundation/issabelPBX/issues/33

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