CVE-2026-46392Disclosure

LOWCVSS 8.7 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0 of HAX CMS PHP, the `saveFile` endpoint validates upload extensions case-insensitively and writes the filename to disk verbatim, but the `.htaccess` rule that forces `Content-Disposition: attachment` on HTML files is case-sensitive. An HTML file uploaded with an uppercase extension (`.HTML`, `.Html`, `.HTM`) is still served as `text/html` but the forced-download header never applies, so the browser renders it inline and executes any embedded JavaScript in the HAXcms origin. This bypasses the mitigation shipped for CVE-2026-22704. Version 26.0.0 contains a fix.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-178CWE-434

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-06-06: 2Technical Details · 2026-06-06: 206-06
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-46392 HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0 of HAX CMS PHP, the `saveFile` endpoint validates upload extensions case-… https://www.cve.org/CVERecord?id=CVE-2026-46392

    Post summary

    The statement reports a new vulnerability (CVE‑2026‑46392) in HAX CMS, detailing a case‑sensitivity flaw in the saveFile endpoint.

    00011182
    57.6K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-46392 HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0 of HAX CMS PHP, the `saveFile` endpoint validates upload extensions case-… https://www.cve.org/CVERecord?id=CVE-2026-46392 ----- Traducción: CVE-2026-46392 HAX… http://infoflow.cloud`

    Post summary

    An announcement of CVE‑2026‑46392 for HAX CMS highlights a flaw in the saveFile endpoint’s upload extension validation in PHP versions before 26.0.0.

    0000018
    79 followersView on X

Explore more