CVE-2026-90978 Filter Gallery WordPress plugin - Broken Access Control

Filter Gallery WordPress plugin < 1.1.5 contains a broken access control vulnerability caused by missing nonce verification and capability checks in AJAX handlers, letting low-privileged users overwrite posts and delete stored gallery options, exploit requires low-privileged user access.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.34% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Published
18 September 2026
Updated
15 October 2026
Weakness
CWE-284

Vendor fix

Upgrade to version 1.1.5 or later.

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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