7.2high

CVE-2016-20084

WordPress appointment-booking-calendar 1.1.24 Privilege Escalation XSS

Published 4 mo ago · modified 8 d ago · JSON

CVSS
7.2
v3.1 · CNA
CISA KEV
No
not known exploited
EPSS
0.2%
percentile 16%
Public exploits
0
none known

Summary

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.

CISA SSVC assessment

Exploitation
Proof of concept public
Automatable
yes
Technical impact
partial
Assessed
4 mo ago

Exploit prediction (EPSS)

0.24% probability of exploitation in the next 30 days, higher than 16% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA4.05.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CNA3.17.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CNA4.05.1CVSS: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
CNA3.17.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Affected products

  • dwbooster Appointment Booking Calendar

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

  • exploit-db.com /exploits/39341 · exploit
  • wordpress.org /plugins/appointment-booking-calendar/ · product
  • vulncheck.com /advisories/wordpress-appointment-booking-calendar-privilege-escalation-xss · third-party-advisory

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.