CVE-2026-61524 json
WebsiteBaker CMS < 2.13.10 File Upload RCE via Module Installation
published 2026-08-03 3 mo ago modified 2026-10-23 16 d ago also EUVD-2026-52394
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 0
- none known
Summary
WebsiteBaker CMS before 2.13.10 contains an unrestricted file upload vulnerability in the module installation feature that allows authenticated administrators to achieve remote code execution by uploading a crafted ZIP archive containing a PHP webshell alongside a valid info.php metadata file. Attackers can place the malicious archive through the module installation interface, causing the application to extract the webshell into a web-accessible modules/ subdirectory where it becomes immediately executable by any unauthenticated user via direct HTTP request.
Patch / fix
- WebsiteBaker Org e.V. WebsiteBaker CMS 2.13.10
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 3 mo ago
Exploit prediction
1.03% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- medium.com https://medium.com/@benjaminasareagyapong2006/two-rce-vulnerabilities-i-found-on-my-birthday-evening-4563006a615a referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.6 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 8.6 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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:X/R:X/V:X/RE:X/U:X |
Affected products
- WebsiteBaker Org e.V. WebsiteBaker CMS
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
-
addon.websitebaker.org
/en/browse-add-ons/?type=5&cid=997
product, patch
-
medium.com
/@benjaminasareagyapong2006/two-rce-vulnerabilities-i-found-on-my-birthday-evening-4563006a615a
technical-description, exploit
-
vulncheck.com
/advisories/websitebaker-cms-file-upload-rce-via-module-installation
third-party-advisory
Sources
- CVE List CVE-2026-61524
- NVD CVE-2026-61524
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.