Is moodle/moodle affected by CVE-2025-53021?

Packagist moodle/moodle is affected in >=3.0.0 <4.0.0.

Is CVE-2025-53021 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

medium

CVE-2025-53021

Q: Is CVE-2025-53021 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

Packagist · moodle/moodle

Summary

Moodle Session Fixation allows unauthenticated users to hijack sessions via sesskey parameter

Severity: medium
EPSS: 0.3% (p17)
Also known as: GHSA-cgvv-3455-824j, BIT-moodle-2025-53021
Published: 2025-06-24

References

Related advisories

CVE-2026-26045 — high · Packagist/moodle/moodle
CVE-2025-67853 — high · Packagist/moodle/moodle
CVE-2025-67848 — high · Packagist/moodle/moodle
CVE-2025-67849 — high · Packagist/moodle/moodle
CVE-2025-67850 — high · Packagist/moodle/moodle
CVE-2025-67847 — high · Packagist/moodle/moodle
CVE-2025-62399 — high · Packagist/moodle/moodle
CVE-2025-3642 — high · Packagist/moodle/moodle

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.