Security readout for executives and security teams
Plain-English summary
CVE-2026-27358 is a reflected cross-site scripting issue in the WordPress Architecturer theme before version 3.9.5. An attacker could trick a user into opening a crafted link, causing script to run in that user’s browser. Business impact is highest for public WordPress sites using this theme, especially administrator-facing workflows.
Executive priority
Prioritize remediation for public-facing WordPress sites and sites administered by high-privilege users. This is high severity but requires user interaction, so it is urgent where the affected theme is deployed, not a universal WordPress emergency.
Technical view
The CVE describes improper input neutralization during web page generation, classified as CWE-79. It affects ThemeGoods Architecturer theme versions before 3.9.5. CVSS 3.1 is 7.1 high: network-reachable, low complexity, no privileges required, user interaction required, scope changed, with low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to WordPress sites running the ThemeGoods Architecturer theme below 3.9.5. Sites not using this theme are not indicated as affected by the provided sources.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. Exploitation requires user interaction, consistent with reflected XSS, such as a user visiting attacker-controlled content or a crafted URL.
Researcher notes
Evidence is limited to the CVE record and Patchstack reference in the bundle. No exploit details, affected parameter, or active exploitation evidence are provided. The affected array is sparse, but the description clearly states Architecturer versions before 3.9.5 are affected.
Mitigation direction
- Inventory WordPress sites for the Architecturer theme and installed version.
- Upgrade Architecturer to version 3.9.5 or later where applicable.
- If updating is delayed, check ThemeGoods or Patchstack guidance for supported temporary mitigations.
- Limit administrator exposure to untrusted links until affected sites are updated.
Validation and detection
- Confirm whether the Architecturer theme is installed on each WordPress site.
- Record the exact installed theme version.
- Treat versions below 3.9.5 as affected based on the CVE description.
- Verify remediation by confirming the theme reports version 3.9.5 or later.
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-2026-27358 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.