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CVE-2019-16981

20
FAUCET Score

CVE-2019-16981 is a Cross-Site Scripting (XSS) vulnerability affecting FusionPBX up to version 4.5.7, where an unsanitized "id" variable from the URL is reflected in HTML. With a CVSS score of 6.1 (Medium), this vulnerability requires user interaction (UI:R) and can lead to low impact on confidentiality and integrity (C:L/I:L) through network-based attacks (AV:N). There is no evidence of active exploitation, publicly available exploit code in Metasploit or ExploitDB, nor significant community discussion or media coverage, indicating a low current threat landscape.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.5.7CPE matchmatch criteria
cpe:2.3:a:fusionpbx:fusionpbx:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 61st percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / fusionpbx/fusionpbx/commit/021ff8f8e51cd1254d19e88e7aedc4b795067f8d
Patch
resp3ctblog.wordpress.com / 2019/10/19/fusionpbx-xss-13
Third Party Advisory