CVE-2026-11784 json
Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization <= 4.2.6 - Cross-Site Request Forgery via 'optml_replace_file' AJAX Action
published 2026-06-18 4 mo ago modified 2026-06-18 4 mo ago also EUVD-2026-37848
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
Affected products
- optimole Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/8a90de6e-6bd5-43b6-980d-84d25d4120ad?source=cve
- plugins.trac.wordpress.org /browser/optimole-wp/tags/4.2.6/inc/media_rename/attachment_edit.php#L331
- plugins.trac.wordpress.org /browser/optimole-wp/tags/4.2.6/inc/media_rename/attachment_edit.php#L24
- plugins.trac.wordpress.org /browser/optimole-wp/tags/4.2.5/inc/media_rename/attachment_edit.php#L331
- plugins.trac.wordpress.org /browser/optimole-wp/tags/4.2.5/inc/media_rename/attachment_edit.php#L24
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3574315%40optimole-wp&new=3574315%40optimole-wp&sfp_email=&sfph
Sources
- CVE List CVE-2026-11784
- NVD CVE-2026-11784
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.