# CVE-2026-103524: Thelia stored XSS in administrative interface

Source: https://junglewise.ai/threats/cve-2026-103524-thelia-v2-6-0-is-vulnerable-to-multiple-stored-xss  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-12. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-103524 · Severity: info · Published 2026-10-12

Thelia is an open-source e-commerce platform that provides merchants with product management and administrative capabilities. CVE-2026-103524 allows attackers with administrative access to inject malicious JavaScript into product and category pages through insufficient input sanitization, which executes when other administrators or customers view the affected pages. This could lead to account compromise, data theft, or malware distribution.

Technologies: [Thelia](https://junglewise.ai/threats/technologies/thelia). Vendors: [Thelia](https://junglewise.ai/threats/vendors/thelia).

## Quick answers

**Is CVE-2026-103524 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-103524 being exploited in the wild.

**How severe is CVE-2026-103524?** Informational severity, published 12 October 2026.

**Which products and versions are affected?** Thelia 2.6.0.

**Is there a fix for CVE-2026-103524?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-103524 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-103524?** Check whether you run Thelia at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

Thelia v2.6.0 fails to properly encode or sanitize user-supplied input in administrative functions such as category and product creation, storing the malicious payload in the database. When the affected administrative interface or product pages are rendered, the unescaped JavaScript executes in the browser context of any user viewing those pages. The vulnerability requires administrative privileges to inject the payload but affects both the admin interface and customer-facing product pages.

## Affected products

- Thelia Thelia 2.6.0

## Timeline

- 2026-10-12: disclosed
- 2026-10-12: advisory

## References

- [https://kb.cert.org/vuls/id/162329](https://kb.cert.org/vuls/id/162329)

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- [Thelia stored cross-site scripting in coupon condition summary](https://junglewise.ai/threats/cve-2026-120205-thelia-before-3-1-0-contains-a-stored-cross-site-scripting)
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