KALLYAS: Reflected cross-site scripting

An unauthenticated attacker can craft script-bearing input that reaches the response without adequate escaping. A victim must interact with the crafted request or page for script to execute in the site origin; the victim role is not disclosed. The endpoint, action and parameter are not disclosed. The CNA vector records limited confidentiality impact, limited integrity impact, limited availability impact. Affected versions: at most 4.25.0.

CVE / CNA score 7.1 CVSS 3.1 · audit@patchstack.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: KALLYAS
Plugin slug: kallyas
Affected: <= 4.25.0
Safe version: See mitigation notes
Published: Oct 23, 2026
Weakness: CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Oct 23, 2026 and is one of 10 known issues for this theme.

What to do

Update, patch or deactivate.

Official author notes reviewed on 2026-10-24 through 4.26.0 do not establish a fixed version for this CVE. PHP compatibility and Contributor PHP-code-element restrictions do not identify reflected XSS. This archive's uncertainty does not establish that the vendor has not fixed the issue. Restrict or disable the affected feature where warranted and consult the author. Official notes: https://my.hogash.com/changelog_category/kallyas-wordpress-theme/. Validate accepted input and use context-appropriate escaping or safe DOM text operations instead of interpreting untrusted input as markup.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Hogash KALLYAS kallyas allows Reflected XSS.This issue affects KALLYAS: from n/a through 4.25.0.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

References

Primary and upstream sources

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