Omega-PSIR patches reflected XSS vulnerability in lang parameter
Omega-PSIR software patched CVE-2026-1434, a reflected XSS vulnerability in the lang parameter allowing arbitrary JavaScript execution via crafted URLs.
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CERT Polska coordinated disclosure of CVE-2026-1434, a reflected cross-site scripting vulnerability in Omega-PSIR software. The flaw exists in the lang parameter and allows an attacker to craft malicious URLs that execute arbitrary JavaScript in a victim's browser when opened. The vulnerability was responsibly reported by security researcher Łukasz Rybak.
The vendor addressed the issue in Omega-PSIR version 4.6.7. Organizations running earlier versions should upgrade immediately to mitigate the risk of phishing campaigns or credential theft via social engineering attacks leveraging the XSS vector.
This disclosure follows CERT Polska's coordinated vulnerability disclosure process, demonstrating effective collaboration between security researchers, CERT teams, and vendors to remediate security flaws before public exploitation.
Mentioned in this report
Source reporting: https://cert.pl/en/posts/2026/02/CVE-2026-1434
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