Security readout for executives and security teams
Plain-English summary
Smart Slider 3 for WordPress has a flaw that can let a logged-in user read files from the web server. The attacker needs at least Subscriber-level access. The main business risk is exposure of sensitive server files, not site takeover by itself. No KEV listing is provided in the source bundle.
Executive priority
Treat as a prioritized WordPress plugin update, especially for sites with user registration or many low-privilege users. This is a confidentiality issue that may expose sensitive server files. It is not currently supported by the provided evidence as an actively exploited emergency.
Technical view
CVE-2026-3098 is an authenticated arbitrary file read in Smart Slider 3 up to and including 3.5.1.33, tied to the actionExportAll function. The CVSS 3.1 score is 6.5: network-accessible, low complexity, low privileges, no user interaction, high confidentiality impact, no integrity or availability impact. The mapped weakness is CWE-862, missing authorization.
Likely exposure
WordPress sites running Smart Slider 3 versions up to 3.5.1.33 are the stated exposure. Risk is higher where public registration, many low-privilege accounts, or weak account governance exists. The sources do not indicate unauthenticated exposure.
Exploitation context
Exploitation requires an authenticated WordPress account with Subscriber-level access or higher. The vulnerability can read arbitrary server-side files, which may contain sensitive information. The provided sources do not establish active exploitation, and the CVE is not marked as CISA KEV in the bundle.
Researcher notes
The source bundle identifies actionExportAll and references WordPress.org code plus changeset 3489689. The record states affected versions through 3.5.1.33, but the affected CPE/version metadata appears sparse. Validate against plugin release notes or repository history before final asset status decisions.
Mitigation direction
- Identify all WordPress sites using Smart Slider 3.
- Update Smart Slider 3 beyond version 3.5.1.33 when a fixed release is available.
- Review WordPress.org plugin guidance and the referenced changeset for remediation details.
- Remove unnecessary Subscriber-level or higher accounts.
- If no fix is available, consider disabling the plugin after business impact review.
Validation and detection
- Confirm installed Smart Slider 3 versions on all WordPress sites.
- Flag versions up to and including 3.5.1.33.
- Review user registration settings and active Subscriber-level accounts.
- Verify the WordPress.org changeset or later vendor update is applied.
- Check logs for unusual authenticated export or slider administration activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-862: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-3098 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e2ce9caf-2ca2-401c-acc7-76be2fd72f36?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/smart-slider-3/tags/3.5.1.32/Nextend/SmartSlider3/Application/Admin/Sliders/ControllerSliders.php#L57CVE reference
- https://plugins.trac.wordpress.org/changeset/3489689/smart-slider-3CVE reference
- https://research.cleantalk.org/cve-2026-3098/CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.