Security readout for executives and security teams
Plain-English summary
CVE-2026-27379 affects the WordPress NextScripts plugin package social-networks-auto-poster-facebook-twitter-g through version 4.4.7. It is a PHP object injection issue caused by unsafe deserialization. A logged-in attacker could potentially compromise confidentiality, integrity, and availability. No cited source says it is actively exploited.
Executive priority
Prioritize remediation for internet-facing WordPress sites using this plugin, particularly sites with many user accounts. The vulnerability is high severity and could affect core business outcomes, but current provided sources do not show known active exploitation.
Technical view
The CVE describes CWE-502 deserialization of untrusted data in NextScripts, enabling object injection. CVSS 3.1 is 8.8: network attack vector, low complexity, low privileges required, no user interaction, and high impact across confidentiality, integrity, and availability. The source bundle identifies affected versions as through 4.4.7.
Likely exposure
Exposure is limited to WordPress sites with the affected NextScripts plugin installed and enabled, especially versions 4.4.7 or earlier. The CVSS vector indicates an attacker needs low privileges, so sites allowing broad subscriber or contributor registration may face higher practical risk.
Exploitation context
The source bundle does not include exploit code, public exploitation claims, or CISA KEV listing. Treat this as a serious authenticated attack surface issue, but do not assume active exploitation based on the provided evidence.
Researcher notes
Key uncertainty: the CVE title says through 4.4.7, while the Patchstack reference URL text mentions 4.4.6. Use the CVE record as the primary affected-version source unless newer vendor guidance clarifies. No official patch version is included in the provided bundle.
Mitigation direction
- Inventory WordPress sites for the NextScripts plugin package social-networks-auto-poster-facebook-twitter-g.
- Identify installations running NextScripts version 4.4.7 or earlier.
- Check vendor, WordPress plugin, or Patchstack guidance for a fixed version or official mitigation.
- Reduce unnecessary WordPress user accounts and privileges until remediation is confirmed.
- Monitor authentication and plugin-related activity for unusual behavior.
Validation and detection
- Confirm whether the plugin is installed on each WordPress instance.
- Record the installed plugin version and compare it to 4.4.7 or earlier.
- Verify remediation status against official vendor or Patchstack information.
- Review WordPress users with low-privilege roles for unnecessary access.
- Check logs for unusual authenticated activity around the affected site period.
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-502: 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 lookupCVE-2026-27379 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
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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.
Deserialization of Untrusted Data
Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.