#VU105852 Cross-site scripting in Additional TCA - CVE-2025-30083

Vulnerability identifier: #VU105852

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-30083

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Additional TCA
Web applications / Modules and components for CMS

Vendor: Themes-Team (Kay Strobach, Jo Hasenau, Thomas Deuling)

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. A remote user can trick the victim to follow a specially crafted link 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

Additional TCA: 1.7.0 - 1.16.8

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External links
https://typo3.org/security/advisory/typo3-ext-sa-2025-002/

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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.