How severe is CVE-2021-4283?

CVE-2021-4283 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-4283 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4283?

CVE-2021-4283 affects Sangoma Voicemail. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4283?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-4283 published?

CVE-2021-4283 was published on 2022-12-27 and last updated on 2026-06-17.

CVE-2021-4283

CVE-2021-4283 is a low-severity vulnerability in Sangoma Voicemail with a CVSS 3.x base score of 2.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Low (CVSS 3.x base score 2.4)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Sangoma Voicemail
Published: 2022-12-27
Last modified: 2026-06-17

Description

A vulnerability was found in FreeBPX voicemail. It has been rated as problematic. Affected by this issue is some unknown functionality of the file views/ssettings.php of the component Settings Handler. The manipulation of the argument key leads to cross site scripting. The attack may be launched remotely. Upgrading to version 14.0.6.25 is able to address this issue. The name of the patch is ffce4882016076acd16fe0f676246905aa3cb2f3. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216872.

Frequently asked questions

What is CVE-2021-4283?: A vulnerability was found in FreeBPX voicemail. It has been rated as problematic. Affected by this issue is some unknown functionality of the file views/ssettings.php of the component Settings Handler. The manipulation of the argument key leads to cross site scripting. The attack may be launched remotely. Upgrading to version 14.0.6.25 is able to address this issue. The name of the patch is ffce4882016076acd16fe0f676246905aa3cb2f3. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216872.
How severe is CVE-2021-4283?: CVE-2021-4283 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-4283 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4283?: CVE-2021-4283 affects Sangoma Voicemail. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4283?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-4283 published?: CVE-2021-4283 was published on 2022-12-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sangoma:voicemail:*:*:*:*:*:freepbx:*:*

More vulnerabilities in Sangoma Voicemail

CVE-2021-4282 — Low (CVSS 3.5): A vulnerability was found in FreePBX voicemail. It has been declared as problematic. Affected by this vulnerability is…

All CVEs affecting Sangoma Voicemail →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →