Security readout for executives and security teams
Plain-English summary
CVE-2021-47984 affects the WordPress WP24 Domain Check plugin version 1.6.2. An authenticated user can save malicious script content in a plugin setting. When an administrator later views the settings page, that script can run in the admin’s browser. This can support account or site-management abuse, but requires authenticated access.
Executive priority
Prioritize remediation for public-facing WordPress sites, sites with multiple content managers, or sites where admin compromise would create business disruption. This is not marked as actively exploited in the provided sources, but public exploit information raises operational urgency.
Technical view
The issue is stored cross-site scripting in WP24 Domain Check 1.6.2, mapped to CWE-79. Crafted input submitted to the fieldnameDomain parameter through the plugin settings form at options.php is stored and later executed for administrators viewing the settings page. CVSS 3.1 is 6.4: network-accessible, low complexity, low privileges required, scope changed, low confidentiality and integrity impact.
Likely exposure
Exposure is limited to WordPress sites running WP24 Domain Check version 1.6.2. The attacker must be authenticated with access sufficient to submit the vulnerable plugin settings field. Public internet exposure increases opportunity if untrusted or weakly controlled accounts exist.
Exploitation context
The source bundle cites an Exploit-DB entry, so public exploit information exists. The CVE is not marked in KEV, and the provided sources do not state active exploitation in the wild. Treat this as a credible stored XSS risk, especially on sites with multiple users or delegated administration.
Researcher notes
Evidence supports authenticated stored XSS through fieldnameDomain in options.php for WP24 Domain Check 1.6.2. No source in the bundle names a specific fixed version or vendor patch. Avoid assuming broader version impact beyond 1.6.2 unless confirmed by additional vendor or repository evidence.
Mitigation direction
- Inventory WordPress sites for WP24 Domain Check version 1.6.2.
- Check the plugin’s official page and vendor guidance for an updated or fixed release.
- Restrict plugin settings access to trusted administrators only.
- Remove or disable the plugin if it is not business-critical.
- Review stored plugin settings for unexpected script-like content.
Validation and detection
- Confirm whether WP24 Domain Check is installed on each WordPress instance.
- Record the installed plugin version and compare it to 1.6.2.
- Identify which roles can access the plugin settings page.
- Review administrator activity for unexpected settings changes.
- Use safe, non-exploit testing to verify input is properly neutralized after remediation.
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-2021-47984 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
- 6.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/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
2 official scoresWe 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:L/I:L/A:N3.12.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
5.1MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-49377CVE reference, VulnCheck · exploit
- Official Product HomepageCVE reference, VulnCheck · product
- VulnCheck Advisory: WordPress Plugin WP24 Domain Check 1.6.2 Stored XSSCVE reference, VulnCheck · third-party-advisory
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.