SB2026081316 - Fedora EPEL 10.3 update for wordpress
Published: August 13, 2026 Updated: August 14, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Arbitrary file upload (CVE-ID: CVE-2026-65640)
CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to unrestricted upload of file with dangerous type in the file upload functionality when processing a malicious Postscript file upload. A remote user with Author or higher privileges can upload a specially crafted Postscript file to execute arbitrary code.
Exploitation requires Imagick and Ghostscript to be in use on the server.
2) Cross-site scripting (CVE-ID: CVE-2026-64638)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in the login screen. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information and potentially compromise the affected website.
Remediation
Install update from vendor's website.