CVE-2026-43892 AntSword: Incomplete noxss() sanitization leads to 1-click RCE via jquery.terminal format code injection
Attackers can achieve remote code execution via format code injection in AntSword due to incomplete XSS sanitization.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-43892?
CVE-2026-43892 is a high-severity code injection vulnerability in AntSwordProject antSword, published on 12 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Which versions are affected by CVE-2026-43892?
How do I fix CVE-2026-43892?
No fix has been published for CVE-2026-43892 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-43892 being exploited?
There is no known exploitation of CVE-2026-43892 in the wild and no public exploit code.
Sources
Also known as GHSA-c63g-p4cp-r45x.