Vulnerability · Published Aug 17, 2026 · Assigned by hackerone
CVE-2026-65640
High 8.8
In plain English
A high-severity unrestricted file upload in WordPress from WordPress. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
WordPress is vulnerable to a remote code execution vulnerability via malicious Postscript file upload by an Author level user or higher. Prerequisites: * Imagick and Ghostscript in use on the server * A malicious user with the `upload_files` capability This issue affects all versions of WordPress. Version 7.0.4 has been released, containing a fix for the vulnerability, and as a courtesy to users on older branches the fix has been backported to all branches back to 4.7.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | wordpress | no fix listed | DEBIAN-CVE-2026-65640 |
| Debian:13 | wordpress | 6.8.10+dfsg1-0+deb13u1 | DEBIAN-CVE-2026-65640 |
| Debian:14 | wordpress | 7.1+dfsg1-1 | DEBIAN-CVE-2026-65640 |
| Ubuntu:22.04:LTS | wordpress | no fix listed | UBUNTU-CVE-2026-65640 |
| Ubuntu:24.04:LTS | wordpress | no fix listed | UBUNTU-CVE-2026-65640 |
| Ubuntu:26.04:LTS | wordpress | no fix listed | UBUNTU-CVE-2026-65640 |
| Ubuntu:26.10 | wordpress | no fix listed | UBUNTU-CVE-2026-65640 |
Affected products (as reported)
Weakness: CWE-434 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H