CVE-2026-120205
Thelia before 3.1.0 Stored XSS via Coupon Condition Customer Name
Thelia before 3.1.0 contains a stored cross-site scripting vulnerability in ForSomeCustomers::getSummary() that allows unauthenticated attackers to inject scripts via unescaped customer names. Attackers can register with a script payload as their name that executes when administrators view related coupons, stealing CSRF tokens to create administrator accounts.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Thelia Thelia thelia/thelia
composer |
≥ 0; < 3.1.0 (affected, semver)
Other versions: unaffected |
CNA: VulnCheck |
| Thelia Core Thelia thelia/core
composer |
≥ 0; < 3.1.0 (affected, semver)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 7.4 high |
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 8.0 high |
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N | CNA: VulnCheck |
Exploit evidence
- https://github.com/thelia/thelia/security/advisories/GHSA-r63g-6wfg-v5v9
exploit · ADP: CISA-ADP
References
- https://github.com/thelia/thelia/security/advisories/GHSA-r63g-6wfg-v5v9CNA: VulnCheck · vendor-advisory
- https://github.com/thelia/thelia/commit/c90d59375089a0833a56703c6f9f9ddea17bddc9CNA: VulnCheck · patch
- https://github.com/thelia/thelia/releases/tag/3.1.0CNA: VulnCheck · release-notes
- https://github.com/thelia/thelia/blob/3.0.0/core/lib/Thelia/Condition/Implementation/ForSomeCustomers.php#L119CNA: VulnCheck · technical-description
- https://www.vulncheck.com/advisories/thelia-before-3.1.0-stored-xss-via-coupon-condition-customer-nameCNA: VulnCheck · third-party-advisory
- https://github.com/thelia/thelia/security/advisories/GHSA-r63g-6wfg-v5v9ADP: CISA-ADP · exploit
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/cveshttps://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.