#VU109896 Stored cross-site scripting in Posts per Cat [Unmaintained] - CVE-2025-4169

Vulnerability identifier: #VU109896

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-2025-4169

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Posts per Cat [Unmaintained]
Web applications / Modules and components for CMS

Vendor: Aleksandar Urošević

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 "ppc" shortcode. 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
Install updates from vendor's website.

Vulnerable software versions

Posts per Cat [Unmaintained]: 1.4.0 - 1.4.2

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External links
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3292123%40posts-per-cat&new=3292123%40posts-per-cat&sfp_email=&sfph_mail=
https://www.wordfence.com/threat-intel/vulnerabilities/id/7eb60874-85c1-40a9-b19d-131c2c2d49ba?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.