Instant Images – One Click Unsplash Uploads: Cross-site scripting
Instant Images – One Click Unsplash Uploads is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
- Component
- Instant Images – One Click Unsplash Uploads
- Plugin slug
instant-images---one-click-unsplash-uploads- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Jun 01, 2021
This CVE was published Jun 01, 2021 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update Instant Images – One Click Unsplash Uploads to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Instant Images – One Click Unsplash Uploads WordPress plugin before 4.4.0.1 did not properly validate and sanitise its unsplash_download_w and unsplash_download_h parameter settings (/wp-admin/upload.php?page=instant-images), only validating them client side before saving them, leading to a Stored Cross-Site Scripting issue.
NVD vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N