Security readout for executives and security teams
Plain-English summary
CVE-2026-3003 affects the Vagaro Booking Widget plugin for WordPress through version 0.3. An unauthenticated attacker can store malicious script through the booking widget configuration/input and have it run when a user visits the affected page. This can support content tampering, session theft risks, or malicious redirects in the browser.
Executive priority
Treat as a high-priority web exposure if the plugin is installed on customer-facing WordPress sites. Prioritize inventory and temporary disablement if no confirmed fix is available. Business risk is highest where visitors log in, book services, or trust the site for transactions.
Technical view
The issue is stored cross-site scripting in the ‘vagaro_code’ parameter due to insufficient sanitization and output escaping. Wordfence rates it CVSS 7.2, high, with network attack vector, low complexity, no privileges, and no user interaction in the CVSS vector. The weakness maps to CWE-79.
Likely exposure
Exposure is likely limited to WordPress sites running the Vagaro Booking Widget plugin up to and including version 0.3, especially where the widget is published on public pages.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. The bug is unauthenticated and stored, increasing practical risk because malicious script can persist and execute for later visitors.
Researcher notes
The public references point to vulnerable WordPress plugin code locations and the Wordfence advisory. Available evidence does not identify a patched release or exploitation in the wild. Validate against the exact installed plugin version and monitor the WordPress plugin repository for changes.
Mitigation direction
- Inventory WordPress sites for the Vagaro Booking Widget plugin and its installed version.
- If affected, check Wordfence, WordPress plugin, and vendor guidance for an updated safe version.
- Disable or remove the plugin where it is not business-critical until guidance is available.
- Review affected pages for unexpected script, redirects, or modified widget content.
- Apply normal WordPress hardening and least-privilege administrative access controls.
Validation and detection
- Confirm whether Vagaro Booking Widget is installed on each WordPress site.
- Verify whether the installed version is 0.3 or earlier.
- Identify pages or posts where the Vagaro widget shortcode or output is used.
- Review web content and security logs for suspicious script-related changes.
- Recheck public advisories for fixed-version or remediation updates.
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-2026-3003 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
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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
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:N/S:C/C:L/I:L/A:N3.92.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
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.