CVE-2026-1493 Cross-Site Scripting in LEX Baza Dokumentów
Attacker can execute arbitrary JavaScript via DOM-based XSS in the em cookie parameter, requiring cookie setting capability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-1493?
CVE-2026-1493 is a medium-severity cross-site scripting vulnerability in Wolters Kluwer Polska LEX Baza Dokumentów, published on 30 Apr 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-1493?
It affects 1 product.
Products include Wolterskluwer Lex Baza Dokumentow.
How do I fix CVE-2026-1493?
No fix has been published for CVE-2026-1493 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-1493 being exploited?
There is no known exploitation of CVE-2026-1493 in the wild and no public exploit code.
Sources
Also known as GHSA-qh5j-h84r-q47c.