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Not in CISA KEV
HIGH severity

CVE-2015-6926 — oxideshop-ce

HIGH

CVE-2015-6926 is a high-severity (CVSS 7.5) Improper Authentication vulnerability in oxid-esales/oxideshop-ce. A fix is available for oxid-esales/oxideshop-ce — see the affected versions and patch details below.

OXID eShop user impersonation vulnerability

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs65th percentile — riskier than 65% of all scored CVEsHighest risk
0.00%0.52%1.05%1.57%0.3%1.1%May 26Sep 26Nov 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
🐘oxid-esales/oxideshop-ce

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

The OpenID Single Sign-On authentication functionality in OXID eShop before 4.5.0 allows remote attackers to impersonate users via the email address in a crafted authentication token.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistoxid-esales/oxideshop-ceall versions4.5.0composer require oxid-esales/oxideshop-ce:^4.5.0

Affected Products

1 product · 3 configurations
Application
eshopoxid-esales
≥ 4.0.1.0 && ≤ 4.4.8
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update oxid-esales/oxideshop-ce to 4.5.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2015-6926 is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

The OpenID Single Sign-On authentication functionality in OXID eShop before 4.5.0 allows remote attackers to impersonate users via the email address in a crafted authentication token.
O3 Security · Impact-Aware SCA

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CVE-2015-6926: oxideshop-ce — Fixed in 4.5.0