nextendweb Smart Slider 3 Plugin up to 3.5.1.36 on WordPress replaceHTMLImage path traversal

Summaryinfo

A vulnerability was found in nextendweb Smart Slider 3 Plugin up to 3.5.1.36 on WordPress. It has been classified as critical. The affected element is the function replaceHTMLImage. Performing a manipulation results in path traversal. This vulnerability is known as CVE-2026-9197. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in nextendweb Smart Slider 3 Plugin up to 3.5.1.36 on WordPress. This affects the function replaceHTMLImage. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality. The summary by CVE is:

The Smart Slider 3 plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 3.5.1.36 via the replaceHTMLImage function. This makes it possible for authenticated attackers, with administrator-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information.

The weakness was published by Nguyen Khanh Hao. The advisory is shared at wordfence.com. This vulnerability is uniquely identified as CVE-2026-9197 since 05/21/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation requires an enhanced level of successful authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• nextendweb

Name

• Smart Slider 3 Plugin

Version

• 3.5.1.0
• 3.5.1.1
• 3.5.1.2
• 3.5.1.3
• 3.5.1.4
• 3.5.1.5
• 3.5.1.6
• 3.5.1.7
• 3.5.1.8
• 3.5.1.9
• 3.5.1.10
• 3.5.1.11
• 3.5.1.12
• 3.5.1.13
• 3.5.1.14
• 3.5.1.15
• 3.5.1.16
• 3.5.1.17
• 3.5.1.18
• 3.5.1.19
• 3.5.1.20
• 3.5.1.21
• 3.5.1.22
• 3.5.1.23
• 3.5.1.24
• 3.5.1.25
• 3.5.1.26
• 3.5.1.27
• 3.5.1.28
• 3.5.1.29
• 3.5.1.30
• 3.5.1.31
• 3.5.1.32
• 3.5.1.33
• 3.5.1.34
• 3.5.1.35
• 3.5.1.36

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