Security readout for executives and security teams
Plain-English summary
CVE-2026-25366 is a critical code-injection issue in the WordPress Woody ad snippets plugin, package insert-php, affecting versions through 2.7.1. A logged-in attacker may be able to execute code through the plugin without user interaction, risking full site compromise.
Executive priority
Prioritize this for WordPress environments using the plugin. The issue is critical, but current sources do not confirm active exploitation. Sites running affected versions should be remediated or have the plugin disabled promptly.
Technical view
The CVE describes CWE-94 improper control of code generation in Themeisle Woody ad snippets insert-php. CVSS 3.1 is 9.9: network-accessible, low complexity, low privileges required, no user interaction, changed scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to WordPress sites with Woody ad snippets / insert-php installed at version 2.7.1 or earlier. The CVSS vector indicates exploitation requires some authenticated privilege, not anonymous access.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Public information indicates high potential impact because successful code injection could execute server-side code in the WordPress environment.
Researcher notes
Use the description and title as the primary affected-version evidence: through 2.7.1. The provided affected metadata is inconsistent, listing version “0” while the narrative states <=2.7.1. No exploit details or fixed version are provided in the bundle.
Mitigation direction
- Inventory WordPress sites for Woody ad snippets / insert-php installations.
- Treat versions 2.7.1 and earlier as vulnerable.
- Check Themeisle and Patchstack guidance for a fixed version or official remediation.
- Disable or remove the plugin if it is not business-critical.
- Restrict WordPress accounts and plugin-management privileges until remediated.
Validation and detection
- Confirm whether Woody ad snippets / insert-php is installed on each WordPress site.
- Record the installed plugin version and compare it to 2.7.1.
- Review WordPress user roles for low-privilege accounts with plugin or snippet access.
- Check vendor advisories for any updated affected-version or fix information.
- Monitor logs for unusual authenticated changes to snippets or plugin settings.
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-94: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-25366 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
- Critical
- CVSS
- 9.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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:H/I:H/A:H3.16Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.9CriticalVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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 Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.