What is CVE-2026-57656?

CVE-2026-57656 is a medium-severity vulnerability in Peregrinethemes Hester Core, classified under Cross-site Scripting. CVSS score: 5.9/10. Published 2026-06-26.

How severe is CVE-2026-57656?

Medium severity. CVSS v3 base score is 5.9 out of 10.

XSS in Peregrinethemes Hester Core

CVE-2026-57656

Author Cross Site Scripting (XSS) in Hester Core <= 1.1.8 versions.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L.

Affected products

Peregrinethemes Hester Core — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-57656?: CVE-2026-57656 is a medium-severity vulnerability in Peregrinethemes Hester Core, classified under Cross-site Scripting. CVSS score: 5.9/10. Published 2026-06-26.
How severe is CVE-2026-57656?: Medium severity. CVSS v3 base score is 5.9 out of 10.