Security readout for executives and security teams
Plain-English summary
This is a CSRF issue in the CFDB7 WordPress plugin. An attacker could rely on a user’s browser interaction to cause unauthorized integrity-changing behavior in affected plugin installations. The source bundle does not identify active exploitation or the exact abused action.
Executive priority
Treat as a routine but time-bounded WordPress plugin remediation. The severity is moderate, but business risk rises for public sites where administrators frequently use WordPress sessions and plugin integrity matters.
Technical view
CVE-2021-36886 affects Contact Form 7 Database Addon – CFDB7 versions 1.2.5.9 and earlier. It is classified as CWE-352 with CVSS 3.1 score 6.5: network reachable, low complexity, no attacker privileges, user interaction required, high integrity impact, no confidentiality or availability impact.
Likely exposure
Exposure is limited to WordPress sites running the CFDB7 plugin at version 1.2.5.9 or earlier. Sites without this plugin, or with a non-affected version according to vendor guidance, are not indicated as affected by the supplied sources.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation evidence. Exploitation would require user interaction and appears focused on integrity impact through CSRF, but the supplied sources do not describe exploit mechanics or the specific plugin action affected.
Researcher notes
The available evidence establishes affected product, version range, CWE, and CVSS vector. It does not provide exact vulnerable endpoint, nonce behavior, proof of exploitation, or detailed fix notes, so validation should stay version- and vendor-guidance based.
Mitigation direction
- Inventory WordPress sites for the CFDB7 plugin and installed version.
- Update CFDB7 according to WordPress plugin or vendor guidance.
- Disable or remove CFDB7 where it is not business-required.
- Review administrative access and reduce unnecessary privileged WordPress users.
- Monitor vendor advisories for any additional remediation notes.
Validation and detection
- Confirm whether CFDB7 is installed on each WordPress site.
- Verify the installed version is greater than 1.2.5.9 or vendor-approved.
- Check WordPress admin and plugin audit logs for unexpected plugin changes.
- Confirm no compensating control relies on unsupported plugin versions.
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 lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-36886 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:N/UI:R/S:U/C:N/I:H/A:N
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:N2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://wordpress.org/plugins/contact-form-cfdb7/#developersCVE reference · x_refsource_CONFIRM
- https://patchstack.com/database/vulnerability/contact-form-cfdb7/wordpress-contact-form-7-database-addon-cfdb7-plugin-1-2-5-9-cross-site-request-forgery-csrf-vulnerabilityCVE 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.