Security readout for executives and security teams
Plain-English summary
CVE-2026-27094 is a stored cross-site scripting issue in the WordPress CoBlocks plugin through version 3.1.16. An attacker with some site access could store malicious script that runs when another user views affected content. This is a medium-severity website risk, not evidence of mass exploitation.
Executive priority
Treat as a standard patch-management priority for WordPress environments. It is not currently supported as an emergency active-exploitation issue, but internet-facing sites with many content users should remediate promptly to reduce account and session abuse risk.
Technical view
The CVE describes CWE-79 improper input neutralization during web page generation in GoDaddy CoBlocks. CVSS 3.1 is 6.5: network-reachable, low complexity, low privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact. The record states CoBlocks versions up to and including 3.1.16 are affected.
Likely exposure
Exposure is limited to WordPress sites with the CoBlocks plugin installed at version 3.1.16 or earlier. Sites that allow multiple authors, contributors, or editors may face higher practical risk because the CVSS vector requires low privileges.
Exploitation context
The provided sources do not report active exploitation, and the CVE is not marked in KEV. Exploitation would require a low-privileged user to place stored script and another user to view the affected page or interface.
Researcher notes
The CVE description and Patchstack reference identify stored XSS through CoBlocks 3.1.16. The CVE affected-product metadata is sparse, so version conclusions should be verified against vendor or Patchstack details before enforcement decisions.
Mitigation direction
- Inventory WordPress sites for the CoBlocks plugin and version.
- Prioritize sites running CoBlocks 3.1.16 or earlier.
- Check GoDaddy, WordPress.org, or Patchstack guidance for a fixed version.
- Apply the vendor-recommended update or mitigation when available.
- Restrict contributor, author, and editor access where not required.
Validation and detection
- Confirm whether CoBlocks is installed on each WordPress site.
- Record the installed CoBlocks version for asset tracking.
- Review plugin changelogs or vendor advisories for the fixing release.
- Check for untrusted recent content changes by low-privileged users.
- Monitor web security logs for suspicious script injection indicators.
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-2026-27094 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.