CVE-2026-11784
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk3th percentile - higher than 3% of all known CVEs
Summary
The Optimole plugin for WordPress is vulnerable to Cross-Site Request Forgery (CSRF) in versions up to 4.2.6. The issue arises from missing or incorrect nonce validation in the replace_file function, allowing unauthenticated attackers to overwrite existing media attachments.
Risk Assessment
Attackers can exploit this vulnerability to overwrite files on the server, potentially leading to data loss or the introduction of malware. The risk increases when administrators are tricked into performing actions that enable the attack.
Recommendation
It is recommended to update the Optimole plugin to the latest version to mitigate this vulnerability. Additionally, implementing extra security measures to minimize the risk of user deception is advisable.
Related vulnerabilities
- CVE-2026-109157Critical
The TRENDnet TEW-432BRP router version 3.10B20 contains a stack-based buffer overflow in the formTcpipSetup function of /goform/formTcpipSetup. Manipulating the Name argument allows remote attack, and the exploit has been publicly disclosed.
- CVE-2026-63354Critical
Affected devices do not properly validate and sanitize visual marker data contained in imported CSV trace files before rendering it on the Trace page. An attacker can socially engineer an authorized user with the 'Read diagnostics' right into importing a crafted trace file.
- CVE-2026-63353Critical
Affected devices do not properly sanitize comment fields contained in imported trace files before rendering them on the Trace page. An attacker can socially engineer an authorized user with the 'Read diagnostics' right into importing a crafted trace file.
- CVE-2026-63350Critical
Affected devices do not properly restrict executable content contained in imported trace files. An attacker can socially engineer an authorized user with the 'Read diagnostics' right into importing a crafted trace file.
- CVE-2026-44415Critical
Affected systems do not properly restrict access to internal APIs and paths for authenticated users. An authenticated remote attacker could access sensitive internal information.
- CVE-2026-109110Critical
The Wavlink WL-WN592AX6 router version 250422 contains a vulnerability in the system function of the wmapd daemon component. Manipulation of an argument leads to OS command injection, and the attack can be launched remotely.
- CVE-2026-109109Critical
The Wavlink WL-WN530BE1-A router version 251117 contains a stack-based buffer overflow in the strcpy function of /cgi-bin/ExportAllSettings.cgi in the Settings Export CGI component. Manipulating the HTTP_COOKIE/X-Cmd argument allows remote attack.
- CVE-2026-109108Critical
The Wavlink WL-WN530BE1-A router version 251117 contains a vulnerability in the popen function of /cgi-bin/uploadVpn.cgi. Manipulating the Type argument leads to OS command injection, and the attack can be performed remotely.
- CVE-2026-108971Critical
A flaw has been found in D-Link DCS-930L B1.08B4 affecting the mpfd_decode function in bootloader_region.bin of the Emergency HTTP Recovery Server component. Manipulating the firmware argument leads to improper verification of the cryptographic signature. The attack can be performed remotely and the exploit has been published.
- CVE-2026-109758Critical
Perforce Helix Authentication Service (HAS) versions 2022.1-2025.2 retain a default SCIM bearer token that is not automatically replaced with a random value during installation. An attacker knowing this token can gain unauthorized access to the SCIM API and perform user and group operations. This issue can be chained with CVE-2026-61834, potentially leading to remote code execution.
Original NVD description (English source)
The Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.2.6. This is due to missing or incorrect nonce validation on the replace_file function. This makes it possible for unauthenticated attackers to overwrite existing media attachments with attacker-supplied file content by supplying a forged multipart POST request targeting any attachment the victim has edit_post capability over via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. The forged request requires a victim with at least Author-level privileges, as the handler enforces a current_user_can('edit_post', $id) check; tricking an Author-level or higher user into clicking a crafted link is sufficient to trigger the overwrite against attachments that user can edit.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS