Cross-site scripting in SaasProject Booking Package - Appointment Booking Calendar System
Priority LOW 30CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
Cross-site scripting vulnerability in Booking Package - Appointment Booking Calendar System versions prior to 1.5.11 allows a remote attacker to inject an arbitrary script via unspecified vectors.
Why it matters now
EPSS 0.01284 70th percentileScored 2026-11-07
Fix Fixed Booking Package - Appointment Booking Calendar System (Saasproject): 1.5.11
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SaasProject | Booking Package - Appointment Booking Calendar System | before 1.5.11 | 1.5.11 | Patch available | CNA |
- Booking Package - Appointment Booking Calendar System VendorSaasProject Affected before 1.5.11 Fixed in 1.5.11 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:saasproject:booking_package:*:*:*:*:*:wordpress:*:* | before 1.5.11 | Vulnerable | SaasProject |
- cpe:2.3:a:saasproject:booking_package:*:*:*:*:*:wordpress:*:* Versions before 1.5.11 Vulnerable ·SaasProject
Remediation
- Fix · CNA Booking Package - Appointment Booking Calendar System (Saasproject) Fixed in 1.5.11
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20840
- 2026-10-03 Alias added: GHSA-6wcx-352r-rcj5
References
More SaasProject Booking Package vulnerabilities
- TI-2022-00623 Booking Package < 1.5.29 - Unauthenticated Sensitive Data Disclosure CVSS 3.1HIGH 7.5
- TI-2023-20817 WordPress Booking Package Plugin <= 1.6.01 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1HIGH 7.1
Sources
- CVE-2021-20840 · CVE Program
- CVE-2021-20840 · NVD
- FIRST EPSS
- GHSA-6wcx-352r-rcj5 · 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