Answer in brief
CVE-2026-18317 records a Unknown severity vulnerability in Foxtool All-in-One: Contact chat button, Custom login, Media optimize images <= 2.5.3 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Plugin Settings Modification via 'option_key' Parameter of toggle_watermark AJAX Action. The current sources do not mark it as known exploited. The current feed maps foxtheme/Foxtool All-in-One: Contact chat button, Custom login, Media optimize images (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps foxtheme/Foxtool All-in-One: Contact chat button, Custom login, Media optimize images (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| foxtheme/Foxtool All-in-One: Contact chat button, Custom login, Media optimize imagesgeneric | 0 | Not reported |
Published upstream
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 18, 2026
The Foxtool All-in-One: Contact chat button, Custom login, Media optimize images plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.5.3. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify arbitrary subkeys of the foxtool_settings option, including enabling site-wide SVG uploads by toggling the media-up3 key, which can facilitate stored cross-site scripting via malicious SVG files.
Quoted source text, attributed separately from HOL analysis.