XSS in Etoilewebdesign Ultimate Appointment Booking \& Scheduling
CVE-2020-24313
Etoile Web Design Ultimate Appointment Booking & Scheduling WordPress Plugin v1.1.9 and lower does not sanitize the value of the "Appointment_ID" GET parameter before echoing it back out inside an input tag. This results in a reflected XSS vulnerability that attackers can exploit with a specially crafted URL.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.012 (65.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- zeroaptitude.com/zerodetail/wordpress-plugin-bug-hunting-part-1/ (URL Repurposed, Exploit, Third Party Advisory)
- wordpress.org/plugins/ultimate-appointment-scheduling/ (Product, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-24313?
- CVE-2020-24313 is a medium-severity vulnerability in Etoilewebdesign Ultimate Appointment Booking \& Scheduling, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-08-26.
- How severe is CVE-2020-24313?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2020-24313 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.