What is CVE-2026-43892?

CVE-2026-43892 is a high-severity vulnerability in Antswordproject Antsword, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2026-05-12.

How severe is CVE-2026-43892?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Antswordproject Antsword

CVE-2026-43892

AntSword is a cross-platform website management toolkit. Prior to 2.1.16, incomplete noxss() sanitization leads to 1-click RCE via jquery.terminal format code injection. This vulnerability is fixed in 2.1.16.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (14.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Antswordproject Antsword — versions < 2.1.16

Weakness classification (CWE)

CWE-79 — Cross-site Scripting
CWE-94 — Code Injection
CWE-1188 — Initialization of a Resource with an Insecure Default

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-43892?: CVE-2026-43892 is a high-severity vulnerability in Antswordproject Antsword, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2026-05-12.
How severe is CVE-2026-43892?: High severity. CVSS v3 base score is 8.8 out of 10.