WordPress appointment-booking-calendar 1.1.24 Privilege Escalation XSS
Published Jun 15, 2026
5.1
MEDIUMCVSS 4.0
EPSS 0.24%
Description
WordPress appointment-booking-calendar 1.1.24 contains multiple privilege escalation vulnerabilities that allow unauthenticated attackers to modify calendar settings and inject persistent cross-site scripting payloads through the admin.php page parameters. Attackers can inject malicious JavaScript into the 'ict' and 'ics' options or the calendar 'name' parameter via GET requests to execute arbitrary scripts when the calendar is displayed or accessed in the administration interface.
Affected products
-
- Version 0StatusaffectedConstraints<=1.1.24
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Dwbooster | Booking Calendar Contact | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
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
1 other source (NVD) ▾
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Jun 15, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Jun–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.24% (0.00245) | 14.17th | v5 (v2026.06.15) |
| Jun 16, 2026 | 0.24% (0.00245) | 15.39th | v5 (v2026.06.15) |
References (3)
- http://wordpress.dwbooster.com/calendars/booking-calendar-contact-form product
- https://www.exploit-db.com/exploits/39341 exploit
- https://www.vulncheck.com/advisories/wordpress-appointment-booking-calendar-privilege-escalation-xss third-party-advisory
| Link | Providers | Tags |
|---|---|---|
| http://wordpress.dwbooster.com/calendars/booking-calendar-contact-form | product | |
| https://www.exploit-db.com/exploits/39341 | exploit | |
| https://www.vulncheck.com/advisories/wordpress-appointment-booking-calendar-privilege-escalation-xss | third-party-advisory |
Change history (0)
No recorded changes yet.