CVE-2026-3098

Smart Slider 3 <= 3.5.1.33 - Authenticated (Subscriber+) Arbitrary File Read via actionExportAll

2026-03-26 15:32
Dmitrii Ignatyev

Strategic Overview

Status
Patched in 3.5.1.34
Affected Plugin
Smart Slider 3
Affected Version
<= 3.5.1.33
CVSS
6.5Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2026-3098
View all Smart Slider 3 vulnerabilities

At a glance

CVE-2026-3098 is a medium-severity Missing Authorization vulnerability in the Smart Slider 3 WordPress plugin, affecting versions <= 3.5.1.33. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 3.5.1.34; sites on affected versions should update now. Disclosed March 2026, reported by Dmitrii Ignatyev.

Vulnerability Overview

The Smart Slider 3 plugin for WordPress is vulnerable to Arbitrary File Read in all versions up to, and including, 3.5.1.33 via the 'actionExportAll' function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-862: Missing Authorization

Smart Slider 3 <= 3.5.1.33 carries this weakness at actionExportAll, and reaching it takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Smart Slider 3 the fix is 3.5.1.34: builds <= 3.5.1.33 are affected, anything from 3.5.1.34 onward is not.

Remediation

Update to version 3.5.1.34, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Smart Slider 3 3.5.1.34 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-3098https://www.wordfence.com/threat-intel/vulnerabilities/id/e2ce9caf-2ca2-401c-acc7-76be2fd72f36https://nvd.nist.gov/vuln/detail/CVE-2026-3098

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C