CVE-2026-19699 json
GutenKit 2.4.12 - 2.4.15 - Contributor+ Mailchimp Audience Data Disclosure
published 2026-08-20 2 mo ago modified 2026-08-26 2 mo ago also EUVD-2026-63205
- cvss
- 2.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 22%
- public exploits
- 0
- none known
Summary
The GutenKit WordPress plugin before 2.5.0 does not have a sufficient capability check on some of its REST API endpoints, allowing users with the Contributor role and above to retrieve mailing-list audience metadata from the site's connected marketing account.
Patch / fix
- Unknown GutenKit 2.5.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/301f10fd-ac72-4d80-8ca3-402a4a55ba3d/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N |
| CNA | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N |
Affected products
- Unknown GutenKit
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
- Technology feeds
References
-
wpscan.com
/vulnerability/301f10fd-ac72-4d80-8ca3-402a4a55ba3d/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-19699
- NVD CVE-2026-19699
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.