Security readout for executives and security teams
Plain-English summary
CVE-2026-1093 affects the WPFAQBlock WordPress plugin up to version 1.1. A logged-in user with Contributor privileges or higher can store malicious script through a shortcode attribute. That script can run when someone views the affected page, potentially exposing session data or altering page behavior.
Executive priority
Treat as a moderate website integrity risk. Prioritize sites with many content contributors, public registration, agencies, or untrusted authors. It is not reported as actively exploited, but stored XSS can affect visitors and administrators if malicious content is published.
Technical view
The issue is stored cross-site scripting in the wpfaqblock shortcode class attribute. Sources attribute it to insufficient sanitization and output escaping of user-supplied attributes. It is tracked as CWE-79 with CVSS 3.1 score 6.4: network exploitable, low complexity, low privileges required, changed scope, low confidentiality and integrity impact.
Likely exposure
Exposure is limited to WordPress sites using WPFAQBlock– FAQ & Accordion Plugin For Gutenberg versions up to and including 1.1, especially where Contributor-level users can create or edit content containing the plugin shortcode.
Exploitation context
Public sources do not indicate active exploitation, and the CVE is not listed as KEV. Exploitation requires authenticated Contributor-level access or higher. Impact is stored XSS: malicious script persists in content and runs for users who access the affected page.
Researcher notes
The source bundle names versions up to and including 1.1 as vulnerable. It does not identify a fixed version or confirmed patch. Trac references point to template code in trunk and tag 1.1, supporting review of output escaping around shortcode attributes.
Mitigation direction
- Inventory WordPress sites for the WPFAQBlock plugin and installed version.
- If version is 1.1 or earlier, check vendor or WordPress plugin guidance for updates.
- Restrict Contributor and higher accounts to trusted users until resolved.
- Review existing content using the wpfaqblock shortcode for suspicious class attributes.
- Remove or disable the plugin if no safe update is available and business use is low.
Validation and detection
- Confirm whether WPFAQBlock is installed on each WordPress site.
- Record the installed plugin version and compare it with the vulnerable range.
- Review pages and posts containing wpfaqblock shortcodes.
- Inspect Contributor-level account activity for recent FAQ or accordion content changes.
- Verify remediation against vendor guidance once an update or advisory is available.
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-2026-1093 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
- 6.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/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:C/C:L/I:L/A:N3.12.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/3a3147b5-0362-4299-8339-655eaade948e?source=cveCVE reference
- https://wordpress.org/plugins/wpfaqblock/CVE reference
- https://plugins.trac.wordpress.org/browser/wpfaqblock/trunk/includes/templates/template-1.php#L10CVE reference
- https://plugins.trac.wordpress.org/browser/wpfaqblock/tags/1.1/includes/templates/template-1.php#L10CVE 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.
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.