Plugins · upcasted-s3-offload · data as of 2026-11-04
Is Upcasted S3 Offload safe? Known vulnerabilities and latest version
- Latest version
- 3.1.0
- Last updated
- 2025-12-15
- Active installs
- 200+
- Known issues on record
- 2
- Unpatched in latest
- 1
- Tested up to WP
- 6.9.11 · PHP 7.4+
Easily migrate and manage WordPress Media Library files to AWS S3 or S3-compatible storage providers. Boost performance and reduce hosting costs. — by upcasted
What to do
- There is no fixed version yet. If you can live without Upcasted S3 Offload for now, deactivate it and delete it until the developer ships a fix.
- If you must keep it, limit who can log in (remove unused accounts, especially low-level ones) and put a web application firewall in front of the site.
- Watch for an update: get an email when this page changes.
- If you ran a vulnerable version and something looks off (spam pages, strange admins, redirects), run the free scan, or have us clean it: Emergency Cleanup, $499.
With WP-CLI: wp plugin get upcasted-s3-offload --field=version shows what you run; wp plugin update upcasted-s3-offload updates it.
Check your version
Known vulnerabilities
2 on record, newest first. “Affected” is the version range the source gives; “fixed in” is the version the source names, or (marked *) the first wordpress.org release after the last affected version.
medium 6.3 affects latest 3.1.0 CVE-2026-62035 · published 2026-10-10
Missing authorization check in Upcasted S3 Offload (3.1.0 and older)
- Affected
- 3.1.0 and older
- Fixed in
- no fix listed yet
- Access needed (per CVSS)
- Needs a low-level account (e.g. subscriber)
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Subscriber Broken Access Control in AWS S3 for WordPress Plugin – Upcasted <= 3.1.0 versions.
medium 6.5 CVE-2025-22676 · published 2025-02-16
Stored cross-site scripting (XSS) in Upcasted S3 Offload (3.0.3 and older)
- Affected
- 3.0.3 and older
- Fixed in
- 3.0.4
- Access needed (per CVSS)
- Needs a low-level account (e.g. subscriber); someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in upcasted AWS S3 for WordPress Plugin – Upcasted upcasted-s3-offload allows Stored XSS.This issue affects AWS S3 for WordPress Plugin – Upcasted: from n/a through <= 3.0.3.
Recent activity
- 2025-12-15 — latest release on wordpress.org (3.1.0).
- 2026-10-10 — Missing authorization check disclosed (CVE-2026-62035), no fix listed yet.
- 2025-02-16 — Stored cross-site scripting (XSS) disclosed (CVE-2025-22676), fixed in 3.0.4.
Get an email when Upcasted S3 Offload has a new vulnerability
Free. We check the CVE feeds every day and email you only when a new issue for Upcasted S3 Offload (upcasted-s3-offload) is published or a fix ships. Unsubscribe in one click.
Browse vulnerabilities
Types found in this plugin: Missing authorization (1) · Cross-site scripting (XSS) (1)
Where this data comes from
- Version, last update, installs: wordpress.org/plugins/upcasted-s3-offload (Plugins API), fetched 2026-11-04.
- Vulnerabilities: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
- Each record links to its CVE page and to the original advisory (Wordfence, Patchstack or WPScan) where there is one. We only list a CVE here when its references or its advisory name this exact plugin, so a few real issues may be missing; none should be about a different plugin. Spot an error? Email Daniel.
Badge for your site or docs (states facts with a date, not a verdict):
<a href="https://laskyr.com/plugins/upcasted-s3-offload"><img src="https://laskyr.com/plugins/upcasted-s3-offload/badge.svg" alt="Upcasted S3 Offload vulnerability status"></a>