CVE-2026-1493: LEX Baza Dokumentów is vulnerable to DOM-based XSS in "em" cookie parameter. The application unsafely processe

Q: How do I fix CVE-2026-1493?

lex baza dokumentow: upgrade to 1.3.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-1493 being exploited?

CVE-2026-1493 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-1493 affect?

CVE-2026-1493 affects lex baza dokumentow. Severity is medium (CVSS 5.4). 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. A

Q: How urgent is CVE-2026-1493?

Priority 21/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADE

CVE-2026-1493 is a medium-severity flaw (CVSS 5.4) affecting lex baza dokumentow. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 securi

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 93%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-04-30
Last modified	2026-10-26

Publisher (CNA): CERT.PL · Vendor: wolterskluwer

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-30 12:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

wolterskluwer lex baza dokumentow UPGRADE

Affected: < 1.3.4

Fixed in: 1.3.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy lex-baza-dokumentow || rpm -q lex-baza-dokumentow || lex-baza-dokumentow --version

2. UPGRADE to 1.3.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade lex-baza-dokumentow

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade lex-baza-dokumentow

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-1493?

lex baza dokumentow: upgrade to 1.3.4. Exact commands for each OS are on this page.

Is CVE-2026-1493 being exploited?

CVE-2026-1493 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-1493 affect?

CVE-2026-1493 affects lex baza dokumentow. Severity is medium (CVSS 5.4). 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. A

How urgent is CVE-2026-1493?

Priority 21/100. No elevated risk signals yet.

References

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