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MEDIUM severity

GHSA-579x-cjvr-cqj9

MEDIUMFix: pimcore/pimcore#10223

GHSA-579x-cjvr-cqj9 is a medium-severity (CVSS 5.3) vulnerability in pimcore/pimcore. O3 Security confirms whether GHSA-579x-cjvr-cqj9 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Observable Response Discrepancy in Lost Password Service

Also known asCVE-2021-39189
Published
Sep 20, 2021
Updated
Jul 8, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Aug 3, 2026 · OSV.dev, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs67th percentile — riskier than 67% of all scored CVEsHighest risk
0.00%0.59%1.19%1.78%0.0%1.3%Feb 26Jun 26Aug 26

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

GHSA-579x-cjvr-cqj9 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 0 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

1 pkg affected
🐘pimcore/pimcore

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

Impact

It is possible to enumerate usernames via the forgot password functionality

Patches

Update to version 10.1.3 or apply this patch manually: https://github.com/pimcore/pimcore/pull/10223.patch

Workarounds

Apply https://github.com/pimcore/pimcore/pull/10223.patch manually.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistpimcore/pimcoreall versions10.1.3

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for pimcore/pimcore. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update pimcore/pimcore to 10.1.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-579x-cjvr-cqj9 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-579x-cjvr-cqj9 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-579x-cjvr-cqj9. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact It is possible to enumerate usernames via the forgot password functionality ### Patches Update to version `10.1.3` or apply this patch manually: https://github.com/pimcore/pimcore/pull/10223.patch ### Workarounds Apply https://github.com/pimcore/pimcore/pull/10223.patch manually.
O3 Security · Impact-Aware SCA

Is GHSA-579x-cjvr-cqj9 in your dependencies?

O3 detects GHSA-579x-cjvr-cqj9 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-579x-cjvr-cqj9: Observable Response… | O3 Security