Security readout for executives and security teams
Plain-English summary
Smart Slider 3 for WordPress had a stored XSS flaw where a project name was not properly sanitized before display. Default access was administrator-only, which limits business risk. Risk increases if lower-privileged users can manage Smart Slider projects, because the issue could support privilege escalation.
Executive priority
Prioritize remediation for WordPress sites where non-admin users can manage Smart Slider content. For default administrator-only deployments, handle through normal plugin patching, access review, and content hygiene.
Technical view
CVE-2021-24382 is CWE-79 in Smart Slider 3 Free and Pro before 3.5.0.9. The vulnerable field is Project Name, which was output without sufficient sanitization. The source bundle provides no CVSS score and no confirmed active exploitation.
Likely exposure
Exposure is most likely on WordPress sites running Smart Slider 3 Free or Pro before 3.5.0.9. Sites are more exposed if plugin functionality is delegated beyond administrators.
Exploitation context
The issue requires authenticated access to affected plugin functionality. By default, only administrators could reach it, but custom role delegation could allow lower-privileged users to trigger stored XSS and potentially escalate privileges. The bundle says KEV is false and does not establish active exploitation.
Researcher notes
Evidence is limited but consistent: stored XSS from unsanitized Project Name output before 3.5.0.9. No CVSS vector is provided. The affected-product listing appears duplicated in the bundle, so rely on the narrative description and vendor/WPScan references for version scope.
Mitigation direction
- Upgrade Smart Slider 3 to 3.5.0.9 or later.
- Check Nextend Smart Slider changelog and vendor guidance.
- Restrict Smart Slider project management to trusted administrators.
- Review custom WordPress roles that can access plugin functionality.
- Remove suspicious or untrusted Smart Slider project names.
Validation and detection
- Inventory WordPress sites using Smart Slider 3 Free or Pro.
- Confirm installed plugin version is 3.5.0.9 or later.
- Review WordPress roles with Smart Slider management access.
- Inspect existing project names for unexpected script-like content.
- Check security monitoring for suspicious authenticated admin activity.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-24382 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://wpscan.com/vulnerability/7b32a282-e51f-4ee5-b59f-5ba10e62a54dCVE reference · x_refsource_CONFIRM
- https://smartslider.helpscoutdocs.com/article/1746-changelogCVE reference · x_refsource_MISC
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.