CVE-2026-90978 — HIGH (7.1)

Vulnerability Description

The Filter Gallery WordPress plugin before 1.1.5 does not verify the nonce on several of its AJAX handlers when the nonce field is omitted, and applies no capability check, allowing low-privileged users to overwrite the content of arbitrary posts and delete the Filter Gallery WordPress plugin before 1.1.5's stored gallery options.

CVSS Score

7.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

LOW

Related Weaknesses (CWE)

CWE-284

References

https://wpscan.com/vulnerability/39321ecd-98e5-4f4e-9a42-bedf5904c3d1/

FAQ

What is CVE-2026-90978?

CVE-2026-90978 is a vulnerability with a CVSS score of 7.1 (HIGH). The Filter Gallery WordPress plugin before 1.1.5 does not verify the nonce on several of its AJAX handlers when the nonce field is omitted, and applies no capability check, allowing low-privileged use...

How severe is CVE-2026-90978?

CVE-2026-90978 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-90978?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.