CVE-2026-54645: XSS (CVSS 4.8)

Description

CubeCart is an ecommerce software solution. Prior to 6.7.5, admin/sources/products.index.inc.php reads the description, description_short, and spec_copy rich-text fields from $GLOBALS['RAW']['POST'] and removes only script elements before the values are stored and rendered through Smarty templates. An administrator with product-editing rights can store event-handler attributes, SVG content, or javascript: URIs that bypass this filter, causing persistent JavaScript execution when a storefront visitor or another administrator views the product content and enabling session exposure or unauthorized browser-context actions. This issue is fixed in version 6.7.5.

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CVSS v3.1 Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploit Prediction

0.0108

Probability of exploitation

0.64%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

References

Other References

https://github.com/cubecart/v6/blob/6.7.5/admin/sources/release_notes/6.7.5.inc.php https://github.com/cubecart/v6/commit/bd2dcdcc7da55a3731fe288b54cac8bfa3d9142a https://github.com/cubecart/v6/commit/f7abe7484691a33abcbc0806fca59d605024a75c https://github.com/cubecart/v6/releases/tag/6.7.5 https://github.com/cubecart/v6/security/advisories/GHSA-43f6-gfcf-wj9c https://github.com/cubecart/v6/security/advisories/GHSA-43f6-gfcf-wj9c

Frequently Asked Questions

What is CVE-2026-54645? +

CubeCart is an ecommerce software solution. Prior to 6.7.5, admin/sources/products.index.inc.php reads the description, description_short, and spec_copy rich-text fields from $GLOBALS['RAW']['POST'] and removes only script elements before the values are stored and rendered through Smarty templates. An administrator with product-editing rights can store event-handler attributes, SVG content, or javascript: URIs that bypass this filter, causing persistent JavaScript execution when a storefront visitor or another administrator views the product content and enabling session exposure or unauthorized browser-context actions. This issue is fixed in version 6.7.5. It has a CVSS v3.1 base score of 4.8 (MEDIUM).

How severe is CVE-2026-54645? +

CVE-2026-54645 has a CVSS v3.1 score of 4.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0108, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-54645? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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