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Vulnerabilities

Vulnerability · CVE-2025-48336

Deserialization of Untrusted Data vulnerability in ThimPress Course Builder course-builder allows Object Injection.This issue affects Course Builder: from n/a through < 3.6.6.

Published May 29, 2025 · catalog updated Apr 28, 2026 · Course Builder

Check if you run it

No confirmed exploitation is on record for CVE-2025-48336. EPSS is 0.46%. Act only if a listed version of Course Builder is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.46%
Remediation
Advisory link
Affected products
vendor thimpress Course Builder 0 ≤3.6.6

Deserialization of Untrusted Data vulnerability in ThimPress Course Builder course-builder allows Object Injection.This issue affects Course Builder: from n/a through < 3.6.6.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor thimpress Course Builder 0 ≤3.6.60 ≤3.6.6

How to fix CVE-2025-48336

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-48336. EPSS is 0.46%. Act only if a listed version of Course Builder is installed.

Which versions are affected?

Compare what you have installed with thimpress Course Builder 0 ≤3.6.6 0 ≤3.6.6. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.46%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 29, 2025 · EUVD

    Detected

    Deserialization of Untrusted Data vulnerability in ThimPress Course Builder course-builder allows Object Injection.This issue affects Course Builder: from n/a through < 3.6.6.

  2. Apr 28, 2026 · EUVD

    Updated

    Deserialization of Untrusted Data vulnerability in ThimPress Course Builder course-builder allows Object Injection.This issue affects Course Builder: from n/a through < 3.6.6.

Sources

  • CVE.orgVulnerability recordCVE-2025-48336

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-48336

    30-day exploitation probability 0.5%

    first.org
  • EUVDVulnerability recordEUVD-2025-16404

    Deserialization of Untrusted Data vulnerability in ThimPress Course Builder course-builder allows Object Injection.This issue affects Course Builder: from n/a through < 3.6.6.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.