CVE-2026-93901 Optima Express IDX - Privilege Escalation

Optima Express IDX WordPress plugin <= 8.7.5 contains a privilege escalation caused by lack of capability check and nonce verification in provisionBlogCredentials() reachable via wp_ajax_nopriv_ihf_clear_cache, letting unauthenticated attackers escalate a pre-registered optima-express user to Author role, exploit requires open user registration and pre-registration of optima-express username.

CVSS base score 7.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.35% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published
25 September 2026
Updated
15 October 2026
Weakness
CWE-269

Vendor fix

Update to the latest version of Optima Express IDX plugin.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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