Public vulnerability disclosure

CVE-2026-121796

Add From Server Reloaded < 6.0.0 - Author+ Stored XSS via SVG Upload

publishedCWE-79

The Add From Server Lite WordPress plugin before 6.0.0 does not restrict SVG uploads to users allowed to post unfiltered HTML, allowing users with the Author role and above to upload SVG files containing JavaScript and perform Stored XSS attacks.

Technical severityUnscoredNo score in collected sources
Published2026-11-07Source updated 2026-11-07
Collected2026-11-071 attributed source

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
Add From Server Lite
Unknown
≥ 0; < 6.0.0 (affected, semver)
Other versions: unaffected
CNA: WPScan

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

No CVSS assessment reported. An unscored record is not a low-severity determination.

Exploit evidence

References

For agents and automation

Read public disclosures for free as Markdown or JSON. Compatible browsers also expose native WebMCP tools to search disclosures, read this page, and discover API access.

Use the ontology-linked Cyber API with x402 pay per request, or a Y2 Pro or Elite API key with the intel:cyber scope.

Endpoints and access details

https://api.y2.dev/api/v2/cyber/cves
https://api.y2.dev/api/v2/cyber/cves/{cveId}

A workspace owner or admin can create a Pro or Elite API key. Send Authorization: Bearer <Y2_API_KEY> from your trusted agent runtime.

For x402, omit Authorization and read the HTTP 402 payment challenge before signing a retry. Public browser tools do not make payments.

Agent access JSON · OpenAPI · CVE API guide