How severe is CVE-2019-16990?

CVE-2019-16990 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-16990 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16990?

CVE-2019-16990 affects Fusionpbx. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-16990?

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

When was CVE-2019-16990 published?

CVE-2019-16990 was published on 2019-10-21 and last updated on 2026-06-17.

CVE-2019-16990

CVE-2019-16990 is a medium-severity vulnerability in Fusionpbx with a CVSS 3.x base score of 6.5. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Fusionpbx
Published: 2019-10-21
Last modified: 2026-06-17

Description

In FusionPBX up to v4.5.7, the file app/music_on_hold/music_on_hold.php uses an unsanitized "file" variable coming from the URL, which takes any pathname (base64 encoded) and allows a download of it.

Frequently asked questions

What is CVE-2019-16990?: In FusionPBX up to v4.5.7, the file app/music_on_hold/music_on_hold.php uses an unsanitized "file" variable coming from the URL, which takes any pathname (base64 encoded) and allows a download of it.
How severe is CVE-2019-16990?: CVE-2019-16990 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-16990 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16990?: CVE-2019-16990 affects Fusionpbx. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-16990?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-16990 published?: CVE-2019-16990 was published on 2019-10-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:fusionpbx:fusionpbx:*:*:*:*:*:*:*:*

More vulnerabilities in Fusionpbx

CVE-2022-35153 — Critical (CVSS 9.8): FusionPBX 5.0.1 was discovered to contain a command injection vulnerability via /fax/fax_send.php.
CVE-2022-28055 — Critical (CVSS 9.8): Fusionpbx v4.4 and below contains a command injection vulnerability via the download email logs function.
CVE-2021-43406 — High (CVSS 8.8): An issue was discovered in FusionPBX before 4.5.30. The fax_post_size may have risky characters (it is not constrained…
CVE-2021-43405 — High (CVSS 8.8): An issue was discovered in FusionPBX before 4.5.30. The fax_extension may have risky characters (it is not constrained…
CVE-2021-43404 — High (CVSS 8.8): An issue was discovered in FusionPBX before 4.5.30. The FAX file name may have risky characters.
CVE-2019-16964 — High (CVSS 8.8): app/call_centers/cmd.php in the Call Center Queue Module in FusionPBX up to 4.5.7 suffers from a command injection…

All CVEs affecting Fusionpbx →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…

Browse all CWE-22 (Path Traversal) vulnerabilities →