# CVE-2026-90900: Joomla Easy Store CSRF vulnerability in product review submission

Source: https://junglewise.ai/threats/cve-2026-90900-joomla-extension-joomshaper-com-missing-csrf-token-verification  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-23. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-90900 · Severity: info · Published 2026-09-23

Easy Store is an e-commerce extension for Joomla that lets customers submit product reviews. The product review submission endpoint failed to verify anti-CSRF tokens, allowing attackers to trick logged-in users into posting unauthorized reviews or spam via cross-site requests. This could damage a store's reputation and degrade the quality of product information.

Technologies: [JoomShaper Easy Store](https://junglewise.ai/threats/technologies/easy-store). Vendors: [JoomShaper](https://junglewise.ai/threats/vendors/joomshaper).

## Quick answers

**Is CVE-2026-90900 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-90900 being exploited in the wild.

**How severe is CVE-2026-90900?** Informational severity, published 23 September 2026.

**Which products and versions are affected?** JoomShaper Easy Store 1.0.0 to 3.0.0.

**Is there a fix for CVE-2026-90900?** 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-2026-90900 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-90900?** Check whether you run JoomShaper Easy Store 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

The product review submission endpoint (index.php?option=com_easystore&task=product.addReview) accepted submissions without verifying CSRF tokens because the token check was commented out in the ProductController. An attacker could craft a malicious page to submit reviews on behalf of authenticated users. The fix enforces Session::checkToken() validation in the controller and injects token fields into the review form template.

## Affected products

- JoomShaper Easy Store 1.0.0 to 3.0.0

## Timeline

- 2026-09-23: disclosed

## References

- [https://www.joomshaper.com/easystore](https://www.joomshaper.com/easystore)

## Related threats

- [Joomla Easy Store extension missing CSRF and access control](https://junglewise.ai/threats/cve-2026-90905-joomla-extension-joomshaper-com-missing-csrf-and-access-control)
- [Joomla Easy Store extension access control bypass in ApiController](https://junglewise.ai/threats/cve-2026-90904-joomla-extension-joomshaper-com-broken-access-control-acl-bypass)
- [Joomla Easy Store extension missing CSRF token verification in AJAX endpoints](https://junglewise.ai/threats/cve-2026-90903-joomla-extension-joomshaper-com-missing-csrf-token-verification)
- [Joomla Easy Store SQL injection in coupon bulk update](https://junglewise.ai/threats/cve-2026-90902-joomla-extension-joomshaper-com-authenticated-privileged-sql)
- [Joomla Easy Store SQL injection in media deletion](https://junglewise.ai/threats/cve-2026-90901-joomla-extension-joomshaper-com-authenticated-privileged-sql)