CVE-2026-16541 json
Simply Schedule Appointments < 1.6.12.17 - Team Member+ User Email Disclosure via Users and Customers REST Endpoints
published 2026-08-15 2 mo ago modified 2026-08-26 2 mo ago also EUVD-2026-59589
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
Summary
The Simply Schedule Appointments WordPress plugin before 1.6.12.17 does not restrict the user records returned by some of its REST endpoints to those the requester is entitled to see, allowing users with a low-privileged staff role to disclose the names and email addresses of arbitrary registered users.
Patch / fix
- Unknown Simply Schedule Appointments 1.6.12.17
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/8172f778-5dc5-49e8-9967-81215ac187d7/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected products
- Unknown Simply Schedule Appointments
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
- Technology feeds
References
-
wpscan.com
/vulnerability/8172f778-5dc5-49e8-9967-81215ac187d7/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-16541
- NVD CVE-2026-16541
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.