CVE-2026-14876: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in nextendweb Smart Slider 3
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.
AI Analysis
Technical Summary
CVE-2026-14876 is a stored cross-site scripting vulnerability in the Smart Slider 3 WordPress plugin. The flaw exists in the handling of the 'data-href' parameter, allowing authenticated contributors or higher to inject arbitrary web scripts. These scripts execute in the context of users visiting the injected pages due to improper neutralization of input during web page generation (CWE-79). The vulnerability affects all versions from 0 up to and including 3.5.1.38.
Potential Impact
An attacker with contributor-level or higher privileges can inject persistent malicious scripts into pages, potentially leading to session hijacking, defacement, or other client-side attacks when other users access the compromised content. The CVSS score of 6.4 (medium severity) reflects the network attack vector, low attack complexity, and the requirement for privileges but no user interaction.
Mitigation Recommendations
No official patch or fix is currently documented. Users should monitor the vendor advisory for updates. Until a fix is available, restrict contributor-level access and above to trusted users only to reduce risk. Avoid exposing the affected plugin versions in sensitive environments.
CVE-2026-14876: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in nextendweb Smart Slider 3
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 v3.1
Score 6.4medium
Affected software
nextendweb
Smart Slider 3
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-14876 is a stored cross-site scripting vulnerability in the Smart Slider 3 WordPress plugin. The flaw exists in the handling of the 'data-href' parameter, allowing authenticated contributors or higher to inject arbitrary web scripts. These scripts execute in the context of users visiting the injected pages due to improper neutralization of input during web page generation (CWE-79). The vulnerability affects all versions from 0 up to and including 3.5.1.38.
Potential Impact
An attacker with contributor-level or higher privileges can inject persistent malicious scripts into pages, potentially leading to session hijacking, defacement, or other client-side attacks when other users access the compromised content. The CVSS score of 6.4 (medium severity) reflects the network attack vector, low attack complexity, and the requirement for privileges but no user interaction.
Mitigation Recommendations
No official patch or fix is currently documented. Users should monitor the vendor advisory for updates. Until a fix is available, restrict contributor-level access and above to trusted users only to reduce risk. Avoid exposing the affected plugin versions in sensitive environments.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-07-06T15:15:58.174Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abcc2bfc8a85a770d06f991
Added to database: 09/30/2026, 08:05:19 UTC
Last enriched: 09/30/2026, 08:20:42 UTC
Last updated: 09/30/2026, 10:54:52 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.