Filter Gallery < 1.1.5 - Subscriber+ Arbitrary Post Overwrite and Plugin Option Deletion via Fail-Open Nonce Check
Priority LOW 31CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-284.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00338 27th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Filter Gallery (Unknown): 1.1.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Filter Gallery | 1.1.2 to before 1.1.5 | 1.1.5 | Patch available | CNA |
- Filter Gallery VendorUnknown Affected 1.1.2 to before 1.1.5 Fixed in 1.1.5 Patch available CNA
Remediation
- Fix · CNA Filter Gallery (Unknown) Fixed in 1.1.5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-90978
- 2026-10-03 Alias added: GHSA-hrf4-x4j2-f44x
References
Sources
- CVE-2026-90978 · CVE Program
- CVE-2026-90978 · NVD
- FIRST EPSS
- GHSA-hrf4-x4j2-f44x · GitHub Advisory Database · CC BY 4.0
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