Medium severity · published Sep 12, 2026
CVE-2026-87918
WPBot < 8.5.7 - Unauthenticated AI Provider API Abuse via Multiple AJAX Actions
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
The WPBot WordPress plugin before 8.5.7 does not perform any authorization or nonce check on several AJAX actions that relay prompts to its configured AI providers, allowing unauthenticated attackers to make those third-party API calls, and consume the associated cost, using the site's own configured API keys.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WP
WPBot ·
before 8.5.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-87918
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-87918
wpscan.com
https://wpscan.com/vulnerability/d6b3745b-bda1-4734-b39c-75376477ba0a/
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