In FusionPBX up to 4.5.7, the file app\messages\messages_thread.php uses an unsanitized "contact_uuid" variable coming from the URL, which is reflected on 3 occasions in HTML, leading to XSS.
CVE-2019-16971
MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence
Score 6.1 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 6.1; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.1Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 6.1(medium)
- EPSS
- 52.3%
- KEV
- Not listed
Published
October 22, 2019
Last Modified
November 21, 2024
References (4)
- cve@mitrehttps://github.com/fusionpbx/fusionpbx/commit/c48a160af53352ad1a43518b7d0faab16b8dfbcc
- cve@mitrehttps://resp3ctblog.wordpress.com/2019/10/19/fusionpbx-xss-4/
- af854a3a-2127-422b-91ae-364da2661108https://github.com/fusionpbx/fusionpbx/commit/c48a160af53352ad1a43518b7d0faab16b8dfbcc
- af854a3a-2127-422b-91ae-364da2661108https://resp3ctblog.wordpress.com/2019/10/19/fusionpbx-xss-4/
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Frequently asked(5)
What is CVE-2019-16971?
CVE-2019-16971 is a medium vulnerability published on October 22, 2019. In FusionPBX up to 4.5.7, the file app\messages\messagesthread.php uses an unsanitized "contactuuid" variable coming from the URL, which is reflected on 3 occasions in HTML, leading to XSS.
When was CVE-2019-16971 disclosed?
CVE-2019-16971 was first published in the National Vulnerability Database on October 22, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-16971 actively exploited?
CVE-2019-16971 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 52.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-16971?
CVE-2019-16971 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2019-16971?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-16971, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2019-16971
Is Your Infrastructure Affected by CVE-2019-16971?
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