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MEDIUM severity

CVE-2017-1000495 — cms

MEDIUMFix: quickapps/cms@7d648f2

CVE-2017-1000495 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in quickapps/cms. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for quickapps/cms — see the affected versions and patch details below.

QuickApps CMS Cross-site Scripting

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Oct 30, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs50th percentile — riskier than 50% of all scored CVEsHighest risk
0.00%0.38%0.75%1.13%0.2%0.6%Apr 26Aug 26Oct 26

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘quickapps/cms

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

Description

QuickApps CMS version 2.0.0 is vulnerable to Stored Cross-site Scripting in the user's real name field resulting in denial of service and performing unauthorised actions with an administrator user's account

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistquickapps/cmsall versions2.0.0composer require quickapps/cms:^2.0.0

Affected Products

1 product · 1 configurations
Application
quickapps cmsquickappscms
1 version
2.0.0
Exploits & PoCs
1

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

QuickApps CMS version 2.0.0 is vulnerable to Stored Cross-site Scripting…

github.comNVDJan 2018

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update quickapps/cms to 2.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2017-1000495 is resolved across your whole dependency graph.

  3. 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.

Frequently Asked Questions

QuickApps CMS version 2.0.0 is vulnerable to Stored Cross-site Scripting in the user's real name field resulting in denial of service and performing unauthorised actions with an administrator user's account
O3 Security · Impact-Aware SCA

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CVE-2017-1000495: cms XSS — Fixed in 2.0.0