What is CVE-2026-25615?

CVE-2026-25615 is a high-severity vulnerability in Blesta, classified under Deserialization of Untrusted Data. CVSS score: 7.2/10. Published 2026-02-03.

How severe is CVE-2026-25615?

High severity. CVSS v3 base score is 7.2 out of 10.

Deserialization in Blesta

CVE-2026-25615

Blesta 3.x through 5.x before 5.13.3 allows object injection, aka CORE-5668.

Vulnerability class: Insecure Deserialization

Published 2026-02-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (52.9th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.007 · change: +0.003

Affected products

Blesta — versions 3.0.0
Phillipsdata Blesta

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

www.blesta.com/2026/01/28/security-advisory/ (Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-25615?: CVE-2026-25615 is a high-severity vulnerability in Blesta, classified under Deserialization of Untrusted Data. CVSS score: 7.2/10. Published 2026-02-03.
How severe is CVE-2026-25615?: High severity. CVSS v3 base score is 7.2 out of 10.