Object Resolver Prototype Pollution

published 2024-06-17 2 y ago modified 2026-06-17 4 mo ago also GHSA-qj86-v6m7-4qv2 , EUVD-2024-2146

cvss: 8.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 36%
public exploits: 0; none known

apphp js-object-resolver < 3.1.1 is vulnerable to Prototype Pollution via Module.setNestedProperty.

Patch / fix

fixed in 2 links 1

npm @apphp/object-resolver 3.1.1
apphp apphp_js-object-resolver 3.1.1

github.com/apphp/js-object-resolver@7e347a2 commit

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-07-01)

Exploit prediction

0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	8.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H
CNA	3.1	8.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H
GitHub	3.1	8.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
npm	@apphp/object-resolver	<3.1.1	3.1.1

Affected products

apphp apphp_js-object-resolver

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation
CWE-1321 Improperly Controlled Modification of Object Prototype Attributes

References

Sources

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