Cyber Resilience

CVE-2025-62709

Auth Bypass in Oxygenz Clipbucket 5.3 – 5.5.2-163

Public PoCAuth Bypass
Published
20 November 2025
Modified
25 November 2025
Patch / advisory
CVSS Score v3.1 6.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
EPSS Score 0.0036 29th percentile
Risk Priority 51 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2025-62709 is a medium-severity Weak Password Recovery Mechanism for Forgotten Password (CWE-640) vulnerability in Oxygenz Clipbucket. Its CVSS base score is 6.8 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Valid Accounts (T1078); ranked at the 29th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to IA-12 (Identity Proofing) and IA-5 (Authenticator Management) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

ClipBucket v5 is an open source video sharing platform. In ClipBucket version 5.5.2, a change to network.class.php causes the application to dynamically build the server URL from the incoming HTTP Host header when the configuration base_url is not set. Because…

more

Host is a client-controlled header, an attacker can supply an arbitrary Host value. This allows an attacker to cause password-reset links (sent by forget.php) to be generated with the attacker’s domain. If a victim follows that link and enters their activation code on the attacker-controlled domain, the attacker can capture the code and use it to reset the victim’s password and take over the account. This issue has been patched in version 5.5.2#162.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1078 Valid Accounts Stealth
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion.
T1110 Brute Force Credential Access
Adversaries may use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained.
T1110.001 Password Guessing Credential Access
Adversaries with no prior knowledge of legitimate credentials within the system or environment may guess passwords to attempt access to accounts.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-67418Same product: Oxygenz Clipbucket
CVE-2025-64336Same product: Oxygenz Clipbucket
CVE-2025-64338Same product: Oxygenz Clipbucket
CVE-2026-28354Same product: Oxygenz Clipbucket
CVE-2025-62430Same product: Oxygenz Clipbucket
CVE-2025-55912Same product: Oxygenz Clipbucket
CVE-2025-62424Same product: Oxygenz Clipbucket
CVE-2025-62423Same product: Oxygenz Clipbucket
CVE-2025-62429Same product: Oxygenz Clipbucket
CVE-2025-65113Same product: Oxygenz Clipbucket

Affected Assets

oxygenz
clipbucket
5.3 — 5.5.2-163

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V7.4.3

Mitigating Controls (NIST 800-53 r5) AI

Identity proofing at appropriate assurance levels ensures forgotten-password recovery cannot succeed without strong verification of the user.

Authenticator management requires secure distribution, reset, and verification procedures that directly address weak password recovery flows.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-01 mostly match
prevents

Credential lifecycle management directly includes password reset/recovery flows.

PR.AA-02 mostly match
prevents

Identity proofing is the core control that prevents weak or bypassed recovery mechanisms.

PR.AA-03 partial match
prevents

Authentication policy covers strength/MFA but does not address recovery path weaknesses.

PR.PS-06 partial match
prevents

Secure SDLC reduces implementation flaws but is not specific to password-recovery design.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

degrades

Strong authentication-information lifecycle rules directly address weak password-recovery flows.

prevents

Secure-SDLC practices can embed strong recovery design, yet the control is broader than this single weakness.

prevents

Application-security requirements can mandate secure recovery flows, but the control covers many other requirements.

prevents

Secure-coding standards can prevent weak recovery implementations, yet the control is wider in scope.

mitigates

Secure-authentication requirements include robust forgotten-password procedures.

References