Wolters Kluwer Polska LEX Baza Dokumentów up to 1.3.3 Cookie em cross site scripting

Summaryinfo

A vulnerability was found in Wolters Kluwer Polska LEX Baza Dokumentów up to 1.3.3. It has been rated as problematic. This vulnerability affects unknown code of the component Cookie Handler. Performing a manipulation of the argument em results in cross site scripting. This vulnerability is reported as CVE-2026-1493. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in Wolters Kluwer Polska LEX Baza Dokumentów up to 1.3.3. This affects an unknown function of the component Cookie Handler. The manipulation of the argument em with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

LEX Baza Dokumentów is vulnerable to DOM-based XSS in "em" cookie parameter. The application unsafely processes the parameter on the client side, allowing an attacker to execute arbitrary JavaScript in the context of the victim's browser. An attacker with ability to set a cookie can perform a more severe attack, so we evaluate the impact and risk of exploitation as minimal. However, the vendor considered this a vulnerability and released a security patch. This issue was fixed in version 1.3.4.

The weakness was disclosed by Marek Figielski. The advisory is shared at wolterskluwer.com. This vulnerability is uniquely identified as CVE-2026-1493 since 01/27/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 1.3.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-26366). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Wolters Kluwer Polska

Name

• LEX Baza Dokumentów

Version

• 1.3.0
• 1.3.1
• 1.3.2
• 1.3.3

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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