Vulnerability · Published Feb 27, 2026 · Assigned by CERT-PL
CVE-2026-1434Reflected XSS in Omega-PSIR
Medium 5.1
In plain English
A medium-severity cross-site scripting in Omega-PSIR from Politechnika Warszawska. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 4.0)5.1Medium
Exploit odds (30 days)0.2%top 91.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
Omega-PSIR is vulnerable to Reflected XSS via the lang parameter. An attacker can craft a malicious URL that, when opened, causes arbitrary JavaScript to execute in the victim’s browser. This issue was fixed in 4.6.7.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Politechnika Warszawska | Omega-PSIR | 4.5.9 – through 4.6.6 |
Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
References
- https://cert.pl/posts/2026/02/CVE-2026-1434 third-party-advisory
- https://www.omegapsir.io/ product