CVE-2019-11358
MediumExploitedPublic exploitXSS in jQuery as used in Drupal, Backdrop CMS, and other products
Published Apr 26, 2019 · Updated Sep 19, 2026 · Also known as DEBIAN-CVE-2019-11358, DEBIAN-CVE-2019-11831, DLA-1777-1, DLA-1797-1, DLA-2118-1, DLA-3551-1, DRUPAL-CORE-2019-006, DSA-4434-1, DSA-4460-1, GHSA-6c3j-c64m-qhgq, PYSEC-2026-628, SNYK-JS-JQUERY-174006, UBUNTU-CVE-2019-11358
Key Facts
Patch immediately- CVE-2019-11358 is a medium-severity vulnerability (CVSS 6.1 v3.1) affecting Backdrop (Backdropcms), Drupal, Joomla\! and 22 more products.
- It is exploited in the wild, listed in Industry KEV feed since Jan 21, 2021. Public exploit code is available.
- EPSS estimates a 87% probability of exploitation in the next 30 days.
- Fixed versions are available, including @seal-security/jquery 1.12.4-sp2p2, @seal-security/jquery 1.12.4-sp999, ansible-tower 0:3.5.2-1.el7at.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS (30-day exploit likelihood)
87%
Higher than 99.7% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2019-11358 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jan 21, 2021 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
515 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| BackdropBackdropcms | See advisory | 1.11.9 |
| DrupalDrupal | See advisory | 7.66 |
| Joomla\!Joomla | See advisory | 3.9.4 |
| jQueryJquery | >= 1.1.4 | 3.4.0 |
| Oncommand System ManagerNetapp | See advisory | 3.1.3 |
Patched Releases
@seal-security/jquery
1.12.4-sp2p2, 1.12.4-sp999
ansible-tower
0:3.5.2-1.el7at
apache-commons-collections
3.2.2-10.module+el8.3.0+53+ea062990, 3.2.2-10.module+el8.3.0+7697+44932688
apache-commons-lang
2.6-21.module+el8.3.0+53+ea062990, 2.6-21.module+el8.3.0+7697+44932688
apache-commons-net
3.6-3.module+el8.3.0+53+ea062990, 3.6-3.module+el8.3.0+7697+44932688
atomic-enterprise-service-catalog
1:3.11.170-1.git.1.91db82e.el7
atomic-openshift
0:3.11.170-1.git.0.00cac56.el7
atomic-openshift-cluster-autoscaler
0:3.11.170-1.git.1.0a0df6a.el7
atomic-openshift-descheduler
0:3.11.170-1.git.1.9ad83f2.el7
atomic-openshift-dockerregistry
0:3.11.170-1.git.1.55fab05.el7
atomic-openshift-metrics-server
0:3.11.170-1.git.1.357f177.el7
atomic-openshift-node-problem-detector
0:3.11.170-1.git.1.b1f90a6.el7
atomic-openshift-service-idler
0:3.11.170-1.git.1.8328979.el7
atomic-openshift-web-console
0:3.11.170-1.git.1.3d64e8b.el7
Backdrop
1.11.9
bea-stax
1.2.0-16.module+el8.3.0+53+ea062990
bea-stax-api
1.2.0-16.module+el8.3.0+7697+44932688
bind-dyndb-ldap
11.3-1.module+el8.3.0+7868+2151076c
cfme
0:5.10.9.1-1.el7cf
cfme-amazon-smartstate
0:5.10.9.1-1.el7cf
cfme-appliance
0:5.10.9.1-1.el7cf
cfme-gemset
0:5.10.9.1-1.el7cf
cri-o
0:1.11.16-0.5.dev.rhaos3.11.git3f89eba.el7
custodia
0.6.0-3.module_el8.6.0+2881+2f24dc92, 0.6.0-3.module+el8.3.0+7868+2151076c, 0.6.0-3.module+el8.4.0+429+6bd33fea
django
2.1.9, 2.2.2
Timeline
Publicly disclosed
Apr 26, 2019
Added to Industry KEV feed
Jan 21, 2021
Last updated
Sep 19, 2026
Weakness Type
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
References
- advisoryRHBA-2020:0402
- advisoryRHSA-2020:1325
- advisoryRHSA-2020:2412
- advisoryRHSA-2020:3936
- advisoryRHSA-2020:4298
FAQ
Common Questions.
jQuery before 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extend(true, {}, ...) because of Object.prototype pollution.
Affected: Backdrop (Backdropcms); Drupal; Joomla\!, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Jan 21, 2021.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including @seal-security/jquery 1.12.4-sp2p2, @seal-security/jquery 1.12.4-sp999, ansible-tower 0:3.5.2-1.el7at.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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