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Fencer Intel
medium 6.1

CVE-2020-7656 json

Cross-Site Scripting in jquery

published 6y ago modified 4mo ago also GHSA-q4m3-2j7h-f7xw , EUVD-2020-0437

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.4%
EPSS 6.4% chance of exploitation in 30 days, percentile 93%
public exploits
1
Exploit-DB

Summary

jquery prior to 1.9.0 allows Cross-site Scripting attacks via the load method. The load method fails to recognize and remove "<script>" HTML tags that contain a whitespace character, i.e: "</script >", which results in the enclosed script logic to be executed.

Patch / fix

  • npm jquery 1.9.0
  • nuget jQuery 1.9.0
  • rubygems jquery-rails 2.2.0
  • maven org.webjars.npm:jquery 1.9.0
  • jquery jquery 1.9.0
  • pcs RHEL 8 0.10.10-4.el8
  • pcs-snmp RHEL 8 0.10.10-4.el8
  • qpid-dispatch amq interconnect 1 1.13.0-3.el6_10
  • qpid-dispatch amq interconnect 1 1.13.0-3.el7
  • qpid-dispatch amq interconnect 1 1.13.0-3.el8
  • qpid-dispatch-tools amq interconnect 1 1.13.0-3.el6_10
  • qpid-dispatch-tools amq interconnect 1 1.13.0-3.el7
  • qpid-dispatch-tools amq interconnect 1 1.13.0-3.el8

red hat advisories RHSA-2021:4142RHSA-2020:4211

  • pcs AlmaLinux 8 0.10.10-4.el8.alma
  • pcs-snmp AlmaLinux 8 0.10.10-4.el8.alma

almalinux advisories ALSA-2021:4142

  • pcs Rocky Linux 8 0.10.10-4.el8

rocky linux advisories RLSA-2021:4142

Is CVE-2020-7656 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-7656 updated cvss 5.4

jquery: Cross-site scripting (XSS) via <script> HTML tags containing whitespaces

  • Red Hat 3scale API Management Platform 2 jquery
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 6 pcp, pcs, pcp-gui, pcp-conf, pcp-libs, pcp-webjs, +74 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 pcp, pcs, ipsilon, pcp-gui, pcp-conf, pcp-libs, +108 more
    affected: no fix available, no fix planned “Out of support scope”
  • Red Hat Process Automation 7 js-jquery js-jquery Red Hat Software Collections python27-python-coverage, python27-python-werkzeug, rh-python35-python-coverage, rh-ror42-rubygem-jquery-rails, rh-ror50-rubygem-jquery-rails
    affected: no fix planned “Out of support scope”
  • Red Hat AMQ Interconnect 1 qpid-dispatch 1.13.0-3.el7, qpid-dispatch 1.13.0-3.el8, qpid-dispatch 1.13.0-3.el6_10, qpid-dispatch-tools 1.13.0-3.el7, qpid-dispatch-tools 1.13.0-3.el8, qpid-dispatch-router 1.13.0-3.el7, +6 more
    fixed: vendor fix RHSA-2020:4211
  • Red Hat Enterprise Linux High Availability (v. 8) pcs 0.10.10-4.el8, pcs-snmp 0.10.10-4.el8 Red Hat Enterprise Linux Resilient Storage (v. 8) pcs 0.10.10-4.el8, pcs-snmp 0.10.10-4.el8
    fixed: vendor fix RHSA-2021:4142
  • Red Hat CloudForms Management Engine 5 cfme-gemset Red Hat OpenShift Service Mesh 1 kiali, servicemesh-grafana, servicemesh-prometheus, servicemesh-grafana-prometheus Red Hat Ceph Storage 3 grafana, grafana-container Red Hat Ceph Storage 4 rhceph/rhceph-4-dashboard-rhel8 Red Hat Enterprise Linux 6 ipa, ipa-client, ipa-python, ipa-server, ipa-admintools, ipa-server-selinux, +1 more Red Hat Enterprise Linux 7 ipa, pki-ca, pki-kra, pki-base, pki-core, pki-tools, +17 more
    +13 more products
    Red Hat Enterprise Linux 8 ipa, jss, pki-ca, idm-jss, ldapjdk, pki-kra, +41 more Red Hat Enterprise Linux 9 pcs, pcs-snmp Red Hat Fuse 7 jquery Red Hat OpenShift Container Platform 3.11 openshift3/grafana, atomic-openshift-web-console Red Hat OpenShift Container Platform 4 openshift4/ose-console, openshift4/ose-grafana Red Hat OpenStack Platform 10 (Newton) python-XStatic-jQuery, python-XStatic-jquery-ui Red Hat OpenStack Platform 13 (Queens) python-XStatic-jQuery, python-XStatic-jquery-ui Red Hat OpenStack Platform 15 (Stein) python-XStatic-jQuery, python3-XStatic-jQuery, xstatic-jquery-ui-common, python3-XStatic-jquery-ui Red Hat OpenStack Platform 16 (Train) python-XStatic-jQuery, python3-XStatic-jQuery, python-XStatic-jquery-ui, xstatic-jquery-ui-common, python3-XStatic-jquery-ui Red Hat Single Sign-On 7 rh-sso7-keycloak rh-sso7-keycloak Red Hat Software Collections rh-python36-python-coverage Red Hat Storage 3 grafana Red Hat Virtualization 4 rhvm, ovirt-engine, ovirt-web-ui, ovirt-engine-setup, ovirt-engine-tools, ovirt-engine-backend, +17 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-22-097-01 updated cvss 6.1

Pepperl+Fuchs WirelessHART-Gateway

  • Pepperl+Fuchs WHA-GW-F2D2-0-AS- Z2-ETH 3.0.7, 3.0.8, 3.0.9 Pepperl+Fuchs WHA-GW-F2D2-0-AS- Z2-ETH.EIP 3.0.7, 3.0.8, 3.0.9
    affected: mitigation “Minimize network exposure for affected products and ensure they are not accessible via the Internet.” cert.vde.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Timeline

  1. Published
  2. First public exploit (EDB-52141)

Exploit prediction

6.43% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-52141 jQuery 3.3.1 - Prototype Pollution & XSS Exploit webapps, 2025-04-08
  • snyk.io https://snyk.io/vuln/SNYK-JS-JQUERY-569619 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
npm jquery
>=1.2.1, <1.9.0
1.9.0
nuget jQuery
>=1.2.1, <1.9.0
1.9.0
rubygems jquery-rails
<2.2.0
2.2.0
maven org.webjars.npm:jquery
>=1.2.1, <1.9.0
1.9.0

Affected products

  • n/a jquery

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel 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.