WordPress Webba Booking plugin <= 4.2.21 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability
Priority LOW 23CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in WebbaPlugins Webba Booking plugin <= 4.2.21 at WordPress.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0061 49th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Webba Plugins | Webba Booking (WordPress plugin) | <= 4.2.21 – 4.2.21 | — | No fix listed | CNA |
- Webba Booking (WordPress plugin) VendorWebba Plugins Affected <= 4.2.21 – 4.2.21 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:webba-booking:webba_booking:*:*:*:*:*:wordpress:*:* | before 4.2.22 | Vulnerable | Webba-booking |
- cpe:2.3:a:webba-booking:webba_booking:*:*:*:*:*:wordpress:*:* Versions before 4.2.22 Vulnerable ·Webba-booking
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-36847
- 2026-10-03 Alias added: GHSA-95pg-qhjc-gcqg
References
More Webba Plugins vulnerabilities
- TI-2026-74743 Authorization bypass in Webba Booking WordPress plugin CVSS 3.1HIGH 7.5
- TI-2026-21823 WordPress Webba Booking plugin <= 6.4.13 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.3
- TI-2026-83167 Missing authorization in Webba Booking WordPress plugin CVSS 3.1MEDIUM 5.4
- TI-2026-82447 Missing authorization in WordPress Webba Booking plugin CVSS 3.1MEDIUM 4.3
Sources
- CVE-2021-36847 · CVE Program
- CVE-2021-36847 · NVD
- FIRST EPSS
- GHSA-95pg-qhjc-gcqg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences