CVE-2026-45233HTMLy CMS 3.1.1 Path Traversal via oldfile Parameter in Autosave
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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HTMLy CMS through 3.1.1 contains a path traversal vulnerability that allows low-privileged authenticated attackers to relocate arbitrary files by supplying directory traversal sequences in the oldfile parameter at the admin autosave endpoint. Attackers can pass unsanitized traversal sequences directly to file_exists() and rename() functions in admin.php without canonicalization or directory boundary enforcement to cause unintended relocation of any file writable by the web server process to an attacker-specified draft location.
- CVSS
- 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Jul 27, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
danpros htmly danpros:htmly (from the name) | through 3.1.1 | CNA record |
References
- https://gist.github.com/mrgr4yhat/c4df971eafa272ac8c86c15e2829b7fetechnical-description, exploit
- https://www.vulncheck.com/advisories/htmly-cms-path-traversal-via-oldfile-parameter-in-autosavethird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.