Cyber Resilience

CVE-2024-54135

CriticalPublic PoCRCE

Published: 06 December 2024

Published
06 December 2024
Modified
22 September 2025
KEV Added
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Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0025 49.0th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-54135 is a critical-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Oxygenz Clipbucket. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 49.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

ClipBucket V5 provides open source video hosting with PHP. ClipBucket-v5 Version 2.0 to Version 5.5.1 Revision 199 are vulnerable to PHP Deserialization vulnerability. The vulnerability exists in upload/photo_upload.php within the decode_key function. User inputs were supplied to this function without…

more

sanitization via collection GET parameter and photoIDS POST parameter respectively. The decode_key function invokes PHP unserialize function as defined in upload/includes/classes/photos.class.php. As a result, it is possible for an adversary to inject maliciously crafted PHP serialized object and utilize gadget chains to cause unexpected behaviors of the application. This vulnerability is fixed in 5.5.1 Revision 200.

CWE(s)
CWE-502

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1070.004 File Deletion Stealth
Adversaries may delete files left behind by the actions of their intrusion activity.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1485 Data Destruction Impact
Adversaries may destroy data and files on specific systems or in large numbers on a network to interrupt availability to systems, services, and network resources.
attack.mitre.org →
Why these techniques?

PHP deserialization via public-facing web app (T1190) enables privilege escalation (T1068), arbitrary file deletion for indicator removal or data destruction (T1070.004, T1485), with demonstrated PoC for file deletion and potential RCE via gadget chains.

Affected Assets

oxygenz
clipbucket
2.0 — 5.5.1-200

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-502

Penetration testing supplies malicious serialized objects, detecting unsafe deserialization and supporting corrective actions.

SA-11 Developer Testing and Evaluation
addresses: CWE-502

Evaluation of untrusted data handling (deserialization testing) reveals unsafe processing, which the required remediation process addresses.

SC-44 Detonation Chambers
addresses: CWE-502

Untrusted serialized data can be deserialized and observed inside the chamber, blocking gadget-chain exploitation outside the sandbox.

SI-10 Information Input Validation
addresses: CWE-502

Validates or rejects untrusted serialized data before deserialization occurs.

SI-3 Malicious Code Protection
addresses: CWE-502

Identifies and blocks malicious code introduced through deserialization of untrusted data at system boundaries.

SI-7 Software, Firmware, and Information Integrity
addresses: CWE-502

Integrity verification of serialized information can detect tampering before deserialization occurs.

SR-4 Provenance
addresses: CWE-502

Provenance of associated data allows detection of untrusted sources before deserialization or processing occurs.

References