Security readout for executives and security teams
Plain-English summary
CVE-2026-27074 is a stored cross-site scripting issue in the WordPress Shortcoder plugin up to version 6.5.1. A lower-privileged authenticated user could store malicious script content that runs when another user views affected content. Business risk is moderate, especially on sites with multiple content contributors or administrators using the plugin.
Executive priority
Treat as a normal-priority remediation for affected WordPress sites, elevated for sites with many contributors or privileged admin sessions. Confirm exposure quickly, reduce editing permissions, and update when vendor guidance identifies a safe release.
Technical view
The issue is CWE-79 improper input neutralization during web page generation in vaakash Shortcoder. CVSS 3.1 is 6.5: network exploitable, low complexity, privileges required, user interaction required, scope changed, with low confidentiality, integrity, and availability impact. Sources identify affected versions as Shortcoder through 6.5.1.
Likely exposure
Exposure is limited to WordPress sites with the Shortcoder plugin installed, particularly versions <= 6.5.1. Risk increases where untrusted or semi-trusted users can create or modify shortcode content. Sites without this plugin are not affected based on the provided sources.
Exploitation context
No active exploitation is indicated in the provided sources, and this CVE is not listed as KEV. Exploitation requires an authenticated user and user interaction, but stored XSS can be serious if an administrator later views the malicious content.
Researcher notes
The provided data names stored XSS in Shortcoder through 6.5.1, with PR:L and UI:R. The bundle does not name a fixed version or detailed vulnerable parameter. Avoid assuming exploit availability or remediation specifics beyond checking vendor guidance and reducing authoring access.
Mitigation direction
- Identify all WordPress sites using the Shortcoder plugin.
- Check vendor, WordPress plugin, or Patchstack guidance for a fixed version.
- Update Shortcoder if a vendor-supported fixed release is available.
- Restrict shortcode editing to trusted administrators only.
- Disable the plugin where it is not business-critical.
- Review stored shortcodes for unexpected script-like content.
Validation and detection
- Confirm whether Shortcoder is installed on each WordPress site.
- Record installed plugin versions and flag versions <= 6.5.1.
- Review user roles allowed to create or edit shortcode content.
- Check recent shortcode changes for suspicious embedded markup or scripts.
- Monitor vendor and Patchstack pages for remediation updates.
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-2026-27074 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/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:L/UI:R/S:C/C:L/I:L/A:L2.33.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/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.