CVE-2019-11358

MEDIUMEPSS 100th pctl

6.1

CVSS v3

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.

CWE-1321

How to fix

Remediation Available

mediawikiDebian

Fixed in:1:1.31.2-1CVE-2019-11358

jqueryUbuntu

Fixed in:1.7.2+dfsg-2ubuntu1+esm1USN-7622-1

Fixed in:1.11.3+dfsg-4ubuntu0.1~esm1USN-7622-1

Fixed in:3.2.1-1ubuntu0.1~esm1USN-7622-1

libjs-jqueryUbuntu

Fixed in:1.7.2+dfsg-2ubuntu1+esm1USN-7622-1

Fixed in:1.11.3+dfsg-4ubuntu0.1~esm1USN-7622-1

Fixed in:3.2.1-1ubuntu0.1~esm1USN-7622-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

87.22%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Patch5

Vendor Advisory1

blog.jquery.com

Third-Party Advisory25

Issue Tracking19

Related Vulnerabilities

Other CWE-1321 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0230	Critical	9.8	97%	-	-
CVE-2020-7774	High	7.3	69%	-	Fix
CVE-2022-24760	Critical	10.0	49%	-	Fix
CVE-2022-39396	Critical	9.8	39%	-	Fix
CVE-2022-2564	Critical	9.8	33%	-	Fix
CVE-2021-23450	High	7.5	30%	-	Fix

Common questions

How do I fix CVE-2019-11358?

Published advisories record a fix for 3 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2019-11358 being actively exploited?

Not that we know of. CVE-2019-11358 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 87.2% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

How severe is CVE-2019-11358?

CVE-2019-11358 has a CVSS v3 base score of 6.1, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2019-11358 affect?

Published advisories record a fix for mediawiki (Debian), jquery (Ubuntu), libjs-jquery (Ubuntu). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.