CVE-2019-9834

Exp

The Netdata web application through 1.13.0 allows remote attackers to inject their own malicious HTML code into an imported snapshot, aka HTML Injection. Successful exploitation will allow attacker-supplied HTML to run in the context of the affected browser, potentially allowing the attacker to steal authentication credentials or to control how the site is rendered to the user. NOTE: the vendor disputes the risk because there is a clear warning next to the button for importing a snapshot

Published: 2019-03-15 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-9834 is rated High Exploit Risk (69.9/100): CVSS Medium severity, with high exploitation likelihood (EPSS 5.10%, 91th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2019-9834

EDB-ID Source Kind Published Link
46545 exploit_db edb 2019-03-15 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-9834

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 6.53% 5.10% -1.43%
2 2026-06-14 7.85% 6.53% -1.32%
3 2026-02-13 — 7.85% —

Full EPSS history (27 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-9834

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2019-9834

OS Trackers for CVE-2019-9834

vendor priority summary link
debian unimportant CVE-2019-9834 unimportant priority: Debian including 1 source packages (netdata), 2 status rows across 2 suites (bookworm, bullseye): open 2. https://security-tracker.debian.org/tracker/CVE-2019-9834
ubuntu negligible CVE-2019-9834 negligible priority: Ubuntu including 1 source packages (netdata), 14 status rows across 14 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): ignored 7, not-affected 4, DNE 2, needs-triage 1. https://ubuntu.com/security/CVE-2019-9834

Affected software / configurations for CVE-2019-9834

Vendor Product Version Raw CPE
netdata netdata <= 1.13.0 cpe:2.3:a:netdata:netdata:*:*:*:*:*:*:*:*

References for CVE-2019-9834

URL Tags
https://github.com/netdata/netdata/issues/5800#issuecomment-510986112 Third Party Advisory
https://www.exploit-db.com/exploits/46545 Exploit Third Party Advisory VDB Entry
https://www.youtube.com/watch?v=zSG93yX0B8k Exploit Third Party Advisory
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