CVE-2025-21623Public exploitNetwork attack vector

Service outage via unauthenticated template path overwrite

Published Jan 7, 2025 · Updated Jan 7, 2025

Path traversal in ClipBucket V5 before 5.5.1 - 238 allows remote attackers to interrupt service through an unauthenticated request. ClipBucket::set_the_template accepts template and set_template query parameters, checks only whether the joined path is a directory, and stores a traversed path as template_dir. A single request to any page that loads common.php can persist an invalid template directory in the database and leave subsequent page requests unable to render.

CVSS severity7.5
High
EPSS probability1.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in ClipBucket V5 before 5.5.1 - 238 allows remote attackers to interrupt service through an unauthenticated request. ClipBucket::set_the_template accepts template and set_template query parameters, checks only whether the joined path is a directory, and stores a traversed path as template_dir. A single request to any page that loads common.php can persist an invalid template directory in the database and leave subsequent page requests unable to render.

The record

CVE
CVE-2025-21623
Published
Jan 7, 2025
Updated
Jan 7, 2025
Vendor
MacWarrior
Product
ClipBucket V5
Classifications
CWE-22, CWE-306, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 7, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 5.5.1 - 238

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MacWarrior · ClipBucket V5version=< 5.5.1 - 238

Published CVSS scores

7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-306Missing Authentication for Critical Function
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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