How severe is GHSA-j57p-g33w-95c5?

No CVSS score has been assigned to GHSA-j57p-g33w-95c5 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-j57p-g33w-95c5?

GHSA-j57p-g33w-95c5 affects the following packages: horizon (PyPI). Ecosystems affected: PyPI.

How do I fix GHSA-j57p-g33w-95c5?

Update horizon to 8.0.0a0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-j57p-g33w-95c5 is resolved across your whole dependency graph.

How do I detect GHSA-j57p-g33w-95c5 in my PyPI dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for horizon, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-j57p-g33w-95c5 if there is no patch (or I can't update yet)?

Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Is GHSA-j57p-g33w-95c5 actively exploited in the wild?

Yes. There are 1 known exploit references for GHSA-j57p-g33w-95c5, including 1 in-the-wild exploitation observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for GHSA-j57p-g33w-95c5?

GHSA-j57p-g33w-95c5 has an EPSS (Exploit Prediction Scoring System) score of 1.9%, placing it in the 80th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-j57p-g33w-95c5?

GHSA-j57p-g33w-95c5 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was GHSA-j57p-g33w-95c5 published, and has it been updated?

GHSA-j57p-g33w-95c5 was published on May 13, 2022 and was last updated on July 6, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐍 PyPI

Not in CISA KEV

OpenStack Horizon Cross-site scripting (XSS) vulnerabilityGHSA-j57p-g33w-95c5

Fix: openstack/horizon@32a7b71

GHSA-j57p-g33w-95c5 is a Cross-site Scripting (XSS) vulnerability in horizon. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for horizon — see the affected versions and patch details below.

Also known asCVE-2014-3474PYSEC-2026-644

Published

May 13, 2022

Updated

Jul 6, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

1 known

Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

1.9%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs80th percentile — riskier than 80% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

🐍horizon

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Cross-site scripting (XSS) vulnerability in horizon/static/horizon/js/horizon.instances.js in the Launch Instance menu in OpenStack Dashboard (Horizon) before 2013.2.4, 2014.1 before 2014.1.2, and Juno before Juno-2 allows remote authenticated users to inject arbitrary web script or HTML via a network name.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`horizon`	all versions	8.0.0a0`pip install --upgrade 'horizon==8.0.0a0'`

Affected Products

2 products · 4 configurations

Application

horizonopenstack

≥ 2014.1 && < 2014.1.2

1 version

juno-1

opensuseopensuse

1 version

13.1

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Cross-site scripting (XSS) vulnerability in horizon/static/horizon/js/ho…

bugs.launchpad.netNVDMar 2021

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for horizon, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update horizon to 8.0.0a0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-j57p-g33w-95c5 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate

Product	Fixed in	Advisory
OpenStack 4 for RHEL 6	`python-django-horizon-0:2013.2.3-3.el6ost`	RHSA-2014:1188
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7	`python-django-horizon-0:2014.1.1-2.el7ost`	RHSA-2014:0939

Frequently Asked Questions

Cross-site scripting (XSS) vulnerability in `horizon/static/horizon/js/horizon.instances.js` in the Launch Instance menu in OpenStack Dashboard (Horizon) before 2013.2.4, 2014.1 before 2014.1.2, and Juno before Juno-2 allows remote authenticated users to inject arbitrary web script or HTML via a network name.

O3 Security · Impact-Aware SCA

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