Medium severity · published Sep 30, 2026
CVE-2026-14876
Smart Slider 3 <= 3.5.1.38 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'data-href' Attribute in Custom HTML Block
6.4
CVSS
0.2%
EPSS
No
On KEV
Description
The Smart Slider 3 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'data-href' parameter in all versions up to, and including, 3.5.1.38 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
Smart Slider 3 · nextendweb
through 3.5.1.38 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-14876
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-14876
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/5d882db3-b92e-4b3b-a07e-fa30fed85364?source=cve
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3654530/smart-slider-3
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