What is CVE-2025-11956?

CVE-2025-11956 is a high-severity vulnerability in Proliz Software Ltd. Co. Obs (Student Affairs Information System), classified under Cross-site Scripting. CVSS score: 8.9/10. Published 2025-11-06.

How severe is CVE-2025-11956?

High severity. CVSS v3 base score is 8.9 out of 10.

XSS in Proliz Software Ltd. Co. Obs (Student Affairs Information System)

CVE-2025-11956

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Proliz Software Ltd. Co. OBS (Student Affairs Information System) allows Stored XSS. This issue affects OBS (Student Affairs Information System): before 25.0401.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2025-11-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.9 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L.

EPSS exploit prediction

EPSS: 0.003 (15.4th percentile), scored 2026-10-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Proliz Software Ltd. Co. Obs (Student Affairs Information System) — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.usom.gov.tr/bildirim/tr-25-0379 (government-resource, broken-link)
siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-25-0379 (government-resource)

Frequently asked questions

What is CVE-2025-11956?: CVE-2025-11956 is a high-severity vulnerability in Proliz Software Ltd. Co. Obs (Student Affairs Information System), classified under Cross-site Scripting. CVSS score: 8.9/10. Published 2025-11-06.
How severe is CVE-2025-11956?: High severity. CVSS v3 base score is 8.9 out of 10.