Security readout for executives and security teams
Plain-English summary
This is a reflected XSS flaw in the Coming Soon by Supsystic WordPress plugin before 1.7.6. A crafted admin dashboard request could cause attacker-controlled script to run in a user's browser. Business impact depends on whether the plugin is installed and who can be induced to open the affected admin page.
Executive priority
Treat this as a targeted WordPress hygiene issue, not an emergency based on current evidence. Prioritize remediation on externally exposed business sites, especially where many administrators use the WordPress dashboard or where admin phishing risk is elevated.
Technical view
The plugin fails to sanitize and escape the tab parameter before outputting it into an admin-dashboard attribute. That maps to CWE-79. The source bundle identifies versions before 1.7.6 as affected, but provides no CVSS score, proof of active exploitation, or detailed vendor remediation text.
Likely exposure
Exposure is likely limited to WordPress environments using Coming Soon by Supsystic earlier than 1.7.6. The vulnerable surface is described as the plugin admin dashboard, so risk is most relevant where authenticated administrators or site operators can be targeted with crafted links.
Exploitation context
The provided sources do not state active exploitation, and the CVE is not listed as KEV in the bundle. The described issue is reflected XSS, which typically depends on a victim visiting a crafted URL or request context rather than unauthenticated server-side compromise.
Researcher notes
Evidence is narrow but consistent: unsanitized tab parameter output in an admin dashboard attribute causes reflected XSS. The bundle lacks CVSS, exploit details, and explicit patch notes beyond the before-1.7.6 version boundary. Do not assume other Supsystic products are affected.
Mitigation direction
- Inventory WordPress sites for Coming Soon by Supsystic installations.
- Upgrade affected installations to version 1.7.6 or later, if available.
- If upgrading is not possible, disable or remove the plugin.
- Restrict WordPress admin access to trusted networks or users where practical.
- Monitor vendor and WPScan guidance for any newer remediation details.
Validation and detection
- Confirm the plugin is not installed, or is version 1.7.6 or later.
- Review WordPress plugin inventories across production and staging sites.
- Check whether admin users can access the vulnerable plugin dashboard.
- Verify remediation in vulnerability management records after upgrade or removal.
- Review logs for unusual admin-dashboard requests referencing the tab parameter.
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-2021-46781 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://wpscan.com/vulnerability/49589867-f764-4c4a-b640-84973c673b23CVE 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.
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.