High severity · published Aug 7, 2026
CVE-2026-66494
Joomla Extension - joomshaper.com - Unauthenticated stored XSS in Shapes API endpoint SP Page Builder < 6.7.0
8.7
CVSS
0.5%
EPSS
No
On KEV
Description
Joomla Extension - joomshaper.com - Unauthenticated stored XSS in Shapes API endpoint SP Page Builder < 6.7.0 - An unauthenticated attacker can store malicious JavaScript in a Joomla site's database via a single HTTP request. When an administrator opens the SP Page Builder editor, the JavaScript executes in their browser automatically..
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SP
SP Page Builder extension for Joomla · joomshaper.com
1.0.0-6.6.2 · source: vendor
Affected product
SP
SP Page Builder extension for Joomla
joomshaper.com
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-66494
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-66494
www.joomshaper.com
https://www.joomshaper.com/page-builder
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