Security readout for executives and security teams
Plain-English summary
CVE-2026-28103 is a reflected cross-site scripting issue in the WordPress LBG Zoominoutslider plugin up to version 5.4.5. An attacker could trick a user into opening a crafted link, causing script to run in that user’s browser in the site context. No active exploitation is reported in the provided sources.
Executive priority
Prioritize sites using this plugin, especially public marketing or customer-facing WordPress sites. The issue is high severity but requires user interaction and has no confirmed active exploitation in the provided sources. Treat remediation as important routine patching unless the plugin is widely deployed or used by privileged users.
Technical view
The issue is CWE-79 improper neutralization during web page generation in LambertGroup LBG Zoominoutslider, package lbg_zoominoutslider. It is network-reachable, low-complexity, requires no privileges, and requires user interaction. CVSS 3.1 is 7.1 with scope changed and low confidentiality, integrity, and availability impacts.
Likely exposure
Exposure is limited to WordPress installations using LBG Zoominoutslider version 5.4.5 or earlier. Sites not running this plugin are not affected based on the provided sources. The source bundle does not name a fixed version.
Exploitation context
This is reflected XSS, so exploitation generally depends on persuading a user to follow attacker-controlled content. The CVE is not listed as KEV in the provided data, and no cited source confirms active exploitation.
Researcher notes
Evidence is sparse: the source bundle identifies the vulnerability, affected range, CWE, and CVSS, but not the vulnerable parameter, proof details, or fixed version. Avoid assuming a patch exists. Validation should focus on asset presence, version exposure, and monitoring vendor/Patchstack updates.
Mitigation direction
- Inventory WordPress sites for LBG Zoominoutslider and record installed versions.
- Check LambertGroup or Patchstack guidance for a fixed release or vendor workaround.
- Update the plugin if a vendor-supported fixed version is available.
- If no fix is available, consider disabling or removing the plugin.
- Restrict administrative browsing and avoid clicking untrusted links while exposure is assessed.
Validation and detection
- Confirm whether the plugin lbg_zoominoutslider is installed on each WordPress site.
- Verify installed plugin versions and flag 5.4.5 or earlier.
- Review vendor and Patchstack pages for updated remediation status.
- Check web logs for unusual requests targeting plugin pages or parameters.
- Document compensating controls if the plugin cannot be removed promptly.
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-2026-28103 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
Source materials
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.