CVE-2026-91051EWWW Image Optimizer 8.6.0 - 8.7.7 - Author+ PHP Object Injection via 'eio_page_settings' Post Meta
Updated under an hour ago ()
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It affects Unknown EWWW Image Optimizer. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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The EWWW Image Optimizer WordPress plugin before 8.8.0 does not prevent authenticated users with author-level permissions from storing a serialized value in a post meta field that is deserialized when the post is rendered, allowing them to perform PHP Object Injection, which can lead to remote code execution when a suitable gadget chain is present via another installed EWWW Image Optimizer WordPress plugin before 8.8.0 or .
- CVSS
- 6.6 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-502
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- WPScan
- NVD analysis
- Deferred
- Record last updated
- Sep 30, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Unknown EWWW Image Optimizer unknown:ewww_image_optimizer (from the name) | from 8.6.0 before 8.8.0 | CNA record |
References
- https://wpscan.com/vulnerability/e24a9497-8fb4-4067-8421-194725455d55/exploit, vdb-entry, technical-description
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.