Security readout for executives and security teams
Plain-English summary
CVE-2026-28108 is a reflected cross-site scripting issue in the WordPress LambertGroup AllInOne Banner with Thumbnails plugin through version 3.8. An attacker may trick a user into opening a malicious link that runs script in the user’s browser. The available sources do not report active exploitation.
Executive priority
Treat as high priority if the plugin is present on public WordPress sites. The business risk is browser-side compromise of visitors or administrators, but urgency depends on actual deployment. First action is inventory, then follow vendor remediation guidance.
Technical view
The CVE describes CWE-79 improper input neutralization during web page generation in package all-in-one-thumbnailsBanner. CVSS 3.1 is 7.1: network-accessible, low complexity, no privileges required, user interaction required, scope changed, with low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to WordPress sites with LambertGroup AllInOne Banner with Thumbnails installed at version 3.8 or earlier. Sites without this plugin are not indicated as affected by the provided sources.
Exploitation context
This is reflected XSS, so exploitation generally depends on a victim interacting with attacker-controlled content or a crafted link. The CVE record indicates no privileges are required. KEV is false, and the provided sources do not substantiate active exploitation.
Researcher notes
Evidence is limited to the CVE record and Patchstack database reference. No exploit code, active exploitation claim, or specific patched version is provided in the source bundle. Validate affected instances through asset inventory rather than assumptions.
Mitigation direction
- Inventory WordPress sites for all-in-one-thumbnailsBanner plugin version 3.8 or earlier.
- Check LambertGroup, WordPress, or Patchstack guidance for an updated fixed version or mitigation.
- Disable or remove the plugin where it is not business-critical.
- Prioritize externally facing WordPress sites and administrator-heavy workflows.
Validation and detection
- Confirm whether the plugin is installed and record its version.
- Compare installed versions against the affected range: through 3.8.
- Review vendor and Patchstack entries for current remediation status.
- Check web logs for unusual requests targeting the plugin, without attempting exploitation.
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-2026-28108 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.