What’s Vulnerable › Vulnerabilities
CVE-2021-24382: Smart Slider 3 < 3.5.0.9 - Authenticated Stored Cross-Site Scripting (XSS)
- Severity: medium (CVSS 5.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2021-06-14 · updated 2026-06-17
- Weakness: CWE-79
Description
The Smart Slider 3 Free and pro WordPress plugins before 3.5.0.9 did not sanitise the Project Name before outputting it back in the page, leading to a Stored Cross-Site Scripting issue. By default, only administrator users could access the affected functionality, limiting the exploitability of the vulnerability. However, some WordPress admins may allow lesser privileged users to access the plugin's functionality, in which case, privilege escalation could be performed.
Affected products
- nextendweb Smart Slider: from 3.0 before 3.5.0.9 — fixed in 3.5.0.9
How to fix
Upgrade to a fixed version: nextendweb Smart Slider 3.5.0.9. Check the vendor advisory for mitigations.
References
- https://smartslider.helpscoutdocs.com/article/1746-changelog
- https://wpscan.com/vulnerability/7b32a282-e51f-4ee5-b59f-5ba10e62a54d
- https://smartslider.helpscoutdocs.com/article/1746-changelog
- https://wpscan.com/vulnerability/7b32a282-e51f-4ee5-b59f-5ba10e62a54d
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