Malcure Malware Shield < 19.9.7 - Multisite Subsite Admin+ Arbitrary File Write and Deletion via wpmr_ajax_request
Priority LOW 34CWE-862Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-862.
Summary
The Malcure Malware Shield — Removal, Repair, Monitor WordPress plugin before 19.9.7 does not perform an authorisation check on one of its AJAX actions, allowing users with a subsite administrator role on a multisite network to write and delete arbitrary files in the network's shared filesystem, which can lead to remote code execution.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0038 32nd percentileScored 2026-11-08
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Malcure Malware Shield — Removal, Repair, Monitor (Unknown): 19.9.7
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 | Malcure Malware Shield — Removal, Repair, Monitor | before 19.9.7 | 19.9.7 | Patch available | CNA |
- Malcure Malware Shield — Removal, Repair, Monitor VendorUnknown Affected before 19.9.7 Fixed in 19.9.7 Patch available CNA
Remediation
- Fix · CNA Malcure Malware Shield — Removal, Repair, Monitor (Unknown) Fixed in 19.9.7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-96896
- 2026-10-03 Alias added: GHSA-2hrm-754x-j578
References
Sources
- CVE-2026-96896 · CVE Program
- CVE-2026-96896 · NVD
- FIRST EPSS
- GHSA-2hrm-754x-j578 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences