Unintended Require in larvitbase-api

published 2019-09-03 7 y ago modified 2026-06-17 4 mo ago also GHSA-xf27-jqwv-gf3r , EUVD-2019-0680

cvss: 7.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits: 0; none known

An unintended require vulnerability in <v0.5.5 larvitbase-api may allow an attacker to load arbitrary non-production code (JavaScript file).

Patch / fix

fixed in 2

npm larvitbase-api 0.5.5
larvit larvitbase 0.5.5

Exploit prediction

1.29% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

hackerone.com https://hackerone.com/reports/566056 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:P/A:N
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem	package	affected	fixed in
npm	larvitbase-api	<0.5.5	0.5.5

Affected products

n/a larvitbase-api

Classification

Weakness

CWE-98 Improper Control of Filename for Include/Require Statement in PHP Program
CWE-829 Inclusion of Functionality from Untrusted Control Sphere

References

hackerone.com /reports/566056
web, exploit, issue-tracking, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2019-5479
advisory
npmjs.com /advisories/1120
web

Sources

CVE List CVE-2019-5479
GitHub Advisory GHSA-xf27-jqwv-gf3r
NVD CVE-2019-5479

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary