CVE-2026-54064: NukeViet stored XSS via filter bypass in News module

Quick answers

Is CVE-2026-54064 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-54064 being exploited in the wild.

How severe is CVE-2026-54064?

High severity, with a CVSS score of 8.7, published 13 July 2026.

Which products and versions are affected?

NukeViet < 4.6.00; nukeviet/nukeviet (Packagist) < 4.6.00, ECOSYSTEM:introduced=0,fixed=4.6.00.

Is there a fix for CVE-2026-54064?

Yes. nukeviet/nukeviet (Packagist): upgrade to 4.6.00 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-54064 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-54064?

Check whether you run NukeViet or nukeviet/nukeviet (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

• nukeviet/nukeviet (Packagist): upgrade to 4.6.00 or later

  composer require nukeviet/nukeviet:^4.6.00

Technical details

Two distinct bypasses exist in NukeViet\Core\Request. The first occurs in filterAttr(), where the regex used to block event handlers fails to account for the ASCII Form Feed character (\x0C), which browsers treat as valid whitespace. The second occurs in unhtmlentities(), which fails to strip decimal HTML entities like &#9; (tab) before keyword checks, allowing 'javascript:' URIs to bypass the filter. An authenticated attacker with news-posting privileges can use these techniques to store malicious payloads in the database. These payloads execute in the context of any user viewing the affected content, potentially leading to full account takeover or privilege escalation. The issue is fixed in version 4.6.00 by improving character stripping and entity normalization.

Affected products

• NukeViet NukeViet < 4.6.00

Identifiers

• CVE-2026-54064
• GHSA-465g-4q99-5x86

Timeline

• 2026-07-13: advisory
• 2026-07-13: disclosed
• 4.6.00: patched

References

• https://api.github.com/users/hoaquynhtim99
• https://github.com/hoaquynhtim99
• https://api.github.com/users/hoaquynhtim99/gists%7B/gist_id%7D
• https://api.github.com/users/hoaquynhtim99/repos
• https://avatars.githubusercontent.com/u/2421714?v=4
• https://api.github.com/users/hoaquynhtim99/events%7B/privacy%7D