Security readout for executives and security teams
Plain-English summary
CVE-2026-28109 is a reflected cross-site scripting issue in the WordPress LambertGroup AllInOne Content Slider plugin through version 3.8. An attacker could trick a user into opening a crafted page or link, causing script to run in that user’s browser. Risk is highest on public WordPress sites using this plugin.
Executive priority
Prioritize public WordPress sites using this plugin, especially those serving administrators or authenticated users. Treat as high urgency for inventory and remediation planning, but do not assume active exploitation based on the provided sources.
Technical view
The vulnerability is CWE-79 improper neutralization of input during web page generation in all-in-one-contentSlider. CVSS 3.1 is 7.1 High: network exploitable, low complexity, no privileges required, user interaction required, and changed scope with limited confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to WordPress installations running LambertGroup AllInOne Content Slider plugin version 3.8 or earlier. The provided sources do not identify affected themes, other plugins, or non-WordPress products.
Exploitation context
The CVE is not listed as CISA KEV in the provided bundle, and no cited source states active exploitation. Successful exploitation requires user interaction, consistent with reflected XSS, such as a victim following attacker-controlled content.
Researcher notes
Evidence is limited to the CVE record and Patchstack database reference. The sources provide classification, affected version range, and CVSS vector, but not a fixed version, proof-of-concept status, or detailed vulnerable parameter information.
Mitigation direction
- Inventory WordPress sites for the all-in-one-contentSlider plugin.
- Check vendor and Patchstack guidance for a fixed version or official mitigation.
- Update the plugin if a vendor-supported fixed release is available.
- Disable or remove the plugin where it is not business-critical.
- Apply compensating controls for untrusted parameters until vendor guidance is confirmed.
Validation and detection
- Confirm whether the plugin is installed on each WordPress site.
- Record installed plugin version and flag version 3.8 or earlier.
- Review Patchstack and CVE records for updated remediation details.
- Verify any update or removal in staging before production rollout.
- Monitor web logs and security tools for suspicious XSS-related 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-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 lookupCVE-2026-28109 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
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
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:N/UI:R/S:C/C:L/I:L/A:L2.83.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.