CVE Enrichment

CVSS
6.1 MEDIUM
EPSS
86.82%
EPSS Percentile
99.75%
CISA KEV
Not listed

Description

jQuery before 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extend(true, {}, ...) because of Object.prototype pollution. If an unsanitized source object contained an enumerable __proto__ property, it could extend the native Object.prototype.

Technical Details

CVSS Version
3.1
CNA / NVD Source
[email protected]
Published
20-Apr-2019 07:29
Last Modified
17-Jun-2026 09:12
EPSS Date
2026-10-20
CWE
CWE-1321

CVSS Vector

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

Affected Products / Versions

References

Last enrichment sync: 21-Oct-2026 14:13
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

CVE (5)

Malware (1)

Threat Actors (1)

MITRE ATT&CK (5)

Vendors (1)

Products (6)

Industries (9)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.