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Vulnerability record · CVE-2025-8260 · published 28 July 2025

CVE-2025-8260: Vaelsys broken cryptographic algorithm vulnerability

Vaelsys · Vaelsys

A security flaw has been discovered in Vaelsys VaelsysV4 up to 5.1.0/5.4.0. This affects an unknown part of the file /grid/vgrid_server.php of the component Web interface. Performing a manipulation of the argument xajaxargs results in use of weak hash. The attack is possible to be carried out remotely. The complexity of an attack is rather high. It is indicated that the exploitability is difficult. The exploit has been released to the public and may be used for attacks. Upgrading to version 5.1.1 and 5.4.1 is able to mitigate this issue. Upgrading the affected component is recommended.

1.3 CVSS 4.0 Low EPSS 0.24% · top 86.4% CWE-327 · Broken cryptographic algorithmCWE-328 · CWE-328
1.3CVSS 4.0 base score, v2 2.1
0.24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A security flaw has been discovered in Vaelsys VaelsysV4 up to 5.1.0/5.4.0. This affects an unknown part of the file /grid/vgrid_server.php of the component Web interface. Performing a manipulation of the argument xajaxargs results in use of weak hash. The attack is possible to be carried out remotely. The complexity of an attack is rather high. It is indicated that the exploitability is difficult. The exploit has been released to the public and may be used for attacks. Upgrading to version 5.1.1 and 5.4.1 is able to mitigate this issue. Upgrading the affected component is recommended.

CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/waiwai24/0101/blob/main/CVEs/Vaelsys/Unauthorized_Access_Leads_to_Sensitive_Information_Leakage_in_Va ExploitThird Party Advisory
https://vaelsys.github.io/security-advisory/advisories/VSEC_V4_2025_07_0002.html
https://vuldb.com/submit/616922
https://vuldb.com/vuln/317848
https://vuldb.com/vuln/317848/cti

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

5.5CVE-2026-2952Vaelsys command injection vulnerabilityA flaw has been found in Vaelsys 4.1.0. This vulnerability affects unknown code of the file /tree/tree_server.php of the component HTTP POST Request …EPSS 7.3%5.5CVE-2025-8261Vaelsys improper authorization vulnerabilityA weakness has been identified in Vaelsys VaelsysV4 4.1.0. This vulnerability affects unknown code of the file /grid/vgrid_server.php of the componen…EPSS 0.65%5.5CVE-2025-8259Vaelsys command injection vulnerabilityA vulnerability was identified in Vaelsys VaelsysV4 up to 5.1.0/5.4.0. Affected by this issue is the function execute_DataObjectProc of the file /gri…EPSS 3.2%

Source: NIST National Vulnerability Database (record CVE-2025-8260), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.