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MEDIUM severity

Hybridsessions does not expire session id on logoutGHSA-c7q8-m4xw-c674

MEDIUM

GHSA-c7q8-m4xw-c674 is a medium-severity (CVSS 6.5) CWE-384 vulnerability in silverstripe/hybridsessions. A fix is available for silverstripe/hybridsessions — see the affected versions and patch details below.

Also known asBIT-silverstripe-2022-24444CVE-2022-24444
Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.9%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs60th percentile — riskier than 60% of all scored CVEsHighest risk
0.00%0.47%0.95%1.42%0.3%0.9%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

2 pkgs affected
🐘silverstripe/hybridsessions🐘silverstripe/hybridsessions

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

When using the hybridsessions module is used without the session-manager module installed and sessions IDs are saved to disk, unexpired SessionIDs of logged out users can still be used to make authenticated requests.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistsilverstripe/hybridsessions≥ 1.0.0&&< 2.4.12.4.1composer require silverstripe/hybridsessions:^2.4.1
🐘Packagistsilverstripe/hybridsessions≥ 2.5.0&&< 2.5.12.5.1composer require silverstripe/hybridsessions:^2.5.1

Affected Products

1 product · 2 configurations
Application
silverstripesilverstripe
≤ 2.4.0
1 version
2.5.0

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update silverstripe/hybridsessions to 2.4.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-c7q8-m4xw-c674 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.

Frequently Asked Questions

When using the hybridsessions module is used without the session-manager module installed and sessions IDs are saved to disk, unexpired SessionIDs of logged out users can still be used to make authenticated requests.
O3 Security · Impact-Aware SCA

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Hybridsessions does not expire session id on logout