PT-2026-21451 · Vaelsys · Vaelsys

Cw.Wong · Published 2026-02-22 · Updated 2026-02-27 · CVE-2026-2952

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Vaelsys version 4.1.0

Description A flaw exists in Vaelsys 4.1.0 related to the HTTP POST Request Handler component. Specifically, manipulation of the xajaxargs argument within a request to the file '/tree/tree server.php' can lead to operating system command injection. This issue is exploitable remotely. The exploit has been published.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

OS Command Injection

Command Injection

Weakness Enumeration

CWE-78

CWE-77

Related Identifiers

CVE-2026-2952

Affected Products

Vaelsys

References · 10

• 🔥 https://github.com/CVE-Hunter-Leo/CVE/issues/10 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-2952 · Security Note
• https://osv.dev/vulnerability/CVE-2026-2952 · Vendor Advisory
• https://twitter.com/cracbot/status/2027338031783633315 · Twitter Post
• https://twitter.com/CVEnew/status/2025809051427492042 · Twitter Post
• https://vuldb.com/?ctiid.347318 · Note
• https://twitter.com/SecAideInfo/status/2026609127313781064 · Twitter Post
• https://vuldb.com/?id.347318 · Note
• https://vuldb.com/?submit.755166 · Note
• https://t.me/CVEtracker/45445 · Telegram Post