Trending
CVE-2026-56290

CVE detail

CVE-2026-56290

Joomla Extension - joomlack.fr - Unauthenticated file upload in Page Builder CK extension < 3.6.0 - The Joomla extension Page Builder CK is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.

CVSS 10.0 · CriticalBuzz score 79.2KEV listed2 public exploit repository references

Buzz score

Why this CVE is surfacing

Buzz score total 79.2

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 22.0 · diversity 20.0 · KEV 25.0 · OTX 0.0 · PoC 12.2

Mention score

22.0

8 evidence mentions in the snapshot

Diversity score

20.0

8 sources across 7 categories

KEV score

25.0

Known exploited vulnerability present

OTX score

0.0

0 OTX pulses

PoC score

12.2

2 repos · best confidence 0.99

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 8; within the 30d window
Peak daily: 4; highest bucket

Evidence

Source links by recency

Newest mentions first

8 source links · newest first

CISA Urges Immediate Patching of Exploited ColdFusion, Langflow, Joomla FlawsSecurityWeek
at vulnerabilities in Adobe ColdFusion, Langflow, and two Joomla extensions have been exploited in the wild. Tracked as CVE-2026-48282 (CVSS score of 10/10), the ColdFusion bug was flagged as exploited only days after Adobe rolled out patches for it on June 30. It is a path traversal issue that allows attackers to execute arbitrary code. The Langflow s
newswww.securityweek.comJul 8, 2026, 10:45 AM
U.S. CISA adds Adobe ColdFusion, Joomlack Page Builder, Langflow, and JoomShaper SP Page Builder flaws to its Known Exploited Vulnerabilities catalogSecurity Affairs
Shaper SP Page Builder flaws to its Known Exploited Vulnerabilities (KEV) catalog . The flaws added to the catalog are: CVE-2026-48282 Adobe ColdFusion Path Traversal Vulnerability CVE-2026-48908 JoomShaper SP Page Builder Unrestricted Upload of File with Dangerous Type Vulnerability CVE-2026-55255 Langflow Authorization Bypass Through User-Controlled
newssecurityaffairs.comJul 8, 2026, 8:38 AM
[webapps] Joomla Page Builder CK 3.5.10 - Arbitrary File UploadExploit-DB
Exploit Database Exploits GHDB Papers Shellcodes Search EDB SearchSploit Manual Submissions Online Training Stats About Us About Exploit-DB Exploit-DB History FAQ Search Joomla Page Builder CK 3.5.10 - Arbitrary File Upload EDB-ID: 52626 CVE: 2026-56290 EDB Verified: Author: M@rAz Ali Type: webapps Exploit: / Platform: Multiple Date: 2026-07-08 Vulnerable App: # Exploit Title: Joomla Page Builder CK 3.5.10 - Arbitrary File Upload # Google Dork: inurl:com_pagebuilderck OR "/components/com_pagebui
exploitwww.exploit-db.comJul 8, 2026, 12:00 AM
CISA Adds Three Known Exploited Vulnerabilities to CatalogCISA Alerts
ee new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-48908 JoomShaper SP Page Builder Unrestricted Upload of File with Dangerous Type Vulnerability CVE-2026-55255 Langflow Authorization Bypass Through User-Controlled Key Vulnerability CVE-2026-56290 Joomlack Page Builder Improp
governmentwww.cisa.govJul 7, 2026, 12:00 PM
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-56290www.cisa.gov
No excerpt available.
Mitigationwww.cisa.govJun 29, 2026, 3:16 PM
https://mysites.guru/blog/pagebuilderck-unauthenticated-file-upload-rce/mysites.guru
No excerpt available.
Exploitmysites.guruJun 29, 2026, 3:16 PM
https://forum.joomlack.fr/index.php/page-builder-ck/21627-nouvelle-version-de-pbck-et-joomla-3forum.joomlack.fr
No excerpt available.
Patchforum.joomlack.frJun 29, 2026, 3:16 PM
https://www.joomlack.fr/www.joomlack.fr
No excerpt available.
Productwww.joomlack.frJun 29, 2026, 3:16 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

2 repository references · best confidence 0.99 · max 3 stars

shinthink/pbck-exploitHigh confidence
githubDiscovery source unavailable3 starsDiscovered Jul 9, 2026, 1:19 AM
Jenderal92/CVE-2026-56290High confidence
githubDiscovery source unavailable3 starsDiscovered Jul 9, 2026, 1:19 AM

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External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2026-56290.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:a:joomlack:page_builder_ckSearch this product on Shodan

Exact CVE query

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Shodan's exact vuln: filter is separate from the product searches above and requires an eligible paid Shodan plan.

vuln:CVE-2026-56290Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Analyzed

Published

Jun 29, 2026

Modified

Jul 24, 2026

Official record

Authoritative NVD record

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:Red

CWE IDs

Vendor classifications

How this vector reads

CVSS 4.0 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Network. The vulnerable system can be reached across network boundaries.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Attack Requirements (AT): None. No prerequisite deployment or execution condition is required.
Privileges Required (PR): None. The attacker needs no privileges on the vulnerable system.
User Interaction (UI): None. Exploitation does not require a targeted user to act.
Vulnerable System Confidentiality (VC): High. There is a total or serious impact to this security property.
Vulnerable System Integrity (VI): High. There is a total or serious impact to this security property.
Vulnerable System Availability (VA): High. There is a total or serious impact to this security property.
Subsequent System Confidentiality (SC): High. There is a total or serious impact to this security property.
Subsequent System Integrity (SI): High. There is a total or serious impact to this security property.
Subsequent System Availability (SA): High. There is a total or serious impact to this security property.

Optional CVSS v4 metrics remain in the raw vector; only base metrics are expanded here.

Signals

Exploitation indicators

1 stored signals · KEV present · 0 OTX pulses

KEVKEV
- cwes: CWE-284
- dueDate: 2026-07-10
- knownRansomwareCampaignUse: Unknown
- notes: https://www.joomlack.fr/en/joomla-extensions/page-builder-ck ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-56290
- product: Page Builder
- requiredAction: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
- shortDescription: Joomlack Page Builder contains an improper access control vulnerability that could allow for remote code execution via unauthenticated arbitrary file upload.
- vendorProject: Joomlack
- vulnerabilityName: Joomlack Page Builder Improper Access Control Vulnerability
Observed Jul 7, 2026, 12:00 AM