CVE-2026-49259: NukeViet: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

July 13, 2026

A stored cross-site scripting (XSS) vulnerability exists in NukeViet CMS versions 4.x through 4.5.08. A low-privileged authenticated user can store a JavaScript payload in their profile’s display name fields. The payload executes in the browser of any visitor — including administrators — who clicks the Reply (“Answer”) link on a comment posted by that user.

References

github.com/advisories/GHSA-w2w5-w2pw-r929
github.com/nukeviet/nukeviet/security/advisories/GHSA-w2w5-w2pw-r929
nvd.nist.gov/vuln/detail/CVE-2026-49259

Code Behaviors & Features

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