Security readout for executives and security teams
Plain-English summary
A vulnerable Nested Pages WordPress plugin could let an attacker trick a logged-in administrator into deleting or changing site content. This is not a server takeover issue, but it can damage public pages, publishing workflows, and content integrity.
Executive priority
Treat this as high priority for WordPress sites where content availability or publishing integrity matters. The business risk is unauthorized content deletion or manipulation, not direct data theft based on the provided sources.
Technical view
CVE-2021-38342 is a CSRF flaw in Nested Pages <= 3.1.15 affecting npBulkActions and npBulkEdit admin_post actions. An unauthenticated attacker needs user interaction from a logged-in privileged user. Reported impacts include trashing or purging arbitrary posts and modifying status, ownership, and metadata.
Likely exposure
Exposure is limited to WordPress sites using the Nested Pages plugin at version 3.1.15 or earlier. Risk is higher where administrators remain logged in while browsing external content or managing production publishing workflows.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. Exploitation requires tricking a logged-in user into triggering a forged administrative request, so phishing or malicious pages are the likely delivery context.
Researcher notes
Key evidence is from the CVE record and bundled Wordfence reference. The bundle identifies affected versions and vulnerable actions, but does not provide a specific fixed version, proof of active exploitation, or detailed remediation instructions.
Mitigation direction
- Inventory WordPress sites for the Nested Pages plugin and installed version.
- Check vendor or WordPress plugin guidance for the fixed release before upgrading.
- Upgrade or remove Nested Pages if version is 3.1.15 or earlier.
- Restrict administrator sessions and use anti-phishing controls during remediation.
- Review recent content deletion, ownership, status, and metadata changes.
Validation and detection
- Confirm whether Nested Pages is installed on each WordPress site.
- Verify the installed version is not 3.1.15 or earlier.
- Review administrative audit logs for unexpected bulk post actions.
- Check trash and permanent deletion records for unexplained content loss.
- Confirm site content status, ownership, and metadata remain accurate.
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-352: 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-2021-38342 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
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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:N/UI:R/S:U/C:N/I:H/A:H2.85.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/blog/2021/08/nested-pages-pat%E2%80%A6on-vulnerability/CVE reference · x_refsource_MISC
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.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.