#VU110025 Stored cross-site scripting in Product Subtitle for WooCommerce - CVE-2025-5285

Vulnerability identifier: #VU110025

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-5285

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Product Subtitle for WooCommerce
Web applications / Modules and components for CMS

Vendor: SpiderWares

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the "htmlTag" parameter. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Product Subtitle for WooCommerce: 1.3.0 - 1.3.9

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External links
https://plugins.trac.wordpress.org/browser/product-subtitle-for-woocommerce/tags/1.3.9/includes/plugins/class-pswc-guternburg-block.php#L82
https://wordpress.org/plugins/product-subtitle-for-woocommerce/#developers
https://www.wordfence.com/threat-intel/vulnerabilities/id/b276b1f7-e618-491f-beb4-675228632fa0?source=cve

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.