CVE-2026-21875Disclosure(oxygenz / clipbucket)

LOWCVSS 9.8 · CRITICAL

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft
Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

ClipBucket v5 is an open source video sharing platform. Versions 5.5.2-#187 and below allow an attacker to perform Blind SQL Injection through the add comment section within a channel. When adding a comment within a channel, there is a POST request to the /actions/ajax.php endpoint. The obj_id parameter within the POST request to /actions/ajax.php is then used within the user_exists function of the upload/includes/classes/user.class. php file as the $id parameter. It is then used within the count function of the upload/includes/classes/db.class. php file. The $id parameter is concatenated into the query without validation or sanitization, and a user-supplied input like 1' or 1=1-- - can be used to trigger the injection. This issue does not have a fix at the time of publication.

oxygenz CVEs Back to dashboard

1.5/ 10 priority

Sources & remediation

Exploit / PoC references

Weakness type (CWE)

CWE-89

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

clipbucket

Threat summary

Public PoC is present in monitored signal
1 mentions across 1 observed day

What's happening

PoC mentioned or linked in 1 signal
Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Affected systems

Vendors

oxygenz

Products

clipbucket

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets1 URL

By indicator

https://cloud.projectdiscovery.io/library/CVE-2026-21875

Full discourse1 post

pdnuclei-bot@pdnuclei_bot46d
Disclosure
🚨 CVE-2026-21875 - critical 🚨 ClipBucket v5 <= 5.5.2 - Unauthenticated Blind SQL Injection > ClipBucket v5.5.2-#187 and below contain a blind SQL injection caused by unsanitized ... 👾 https://cloud.projectdiscovery.io/library/CVE-2026-21875 @pdnuclei #NucleiTemplates #cve
Post summary
ClipBucket v5 (up to 5.5.2) is vulnerable to an unauthenticated blind SQL injection; a link to potential PoC resources is shared, but no evidence of active exploitation or a fix is provided.
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CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	oxygenz	clipbucket	-	-	-

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