Description
A weakness has been identified in PMWeb 7.x/8.x/2025.x. This issue affects some unknown processing of the file downloader.aspx. This manipulation of the argument FullFileName/FileName causes path traversal. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Published: 2026-09-28
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Unauthenticated path traversal exposing arbitrary files via PMWeb downloader.aspx
Action: Assess Impact
AI Analysis

Impact

The vulnerability arises in PMWeb 7.x, 8.x, and 2025.x and permits an attacker to manipulate the FullFileName or FileName query arguments in the downloader.aspx component. This manipulation enables a path traversal attack that can read files outside the intended directory. The description does not specify the nature or sensitivity of the files that can be accessed; it is inferred that the attacker could read any files that the web server process can read, potentially including configuration files or credentials, but this is not explicitly stated in the disclosure.

Affected Systems

The affected systems are PMWeb installations running versions 7.x, 8.x, and 2025.x. The product is made by the vendor PMWeb and is referenced as PMWeb in the CPE listing. No specific sub‑versions or build numbers are provided, so all minor releases within the major branches are considered vulnerable.

Risk and Exploitability

The CVSS score of 6.9 indicates a moderate to high impact if exploited. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog. The description states that the attack can be initiated remotely and that a public exploit has been made available, implying that exploitation is possible over the network without prior authentication. No vendor remediation has been released or confirmed, increasing the urgency for mitigations.

Generated by OpenCVE AI on September 28, 2026 at 18:31 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Restrict access to downloader.aspx by configuring the web server or application firewall to allow only authenticated users or trusted IP addresses
  • Validate and sanitize the FullFileName/FileName parameters in the application code to remove or reject paths containing directory traversal sequences such as ".." or absolute paths
  • Monitor application logs for suspicious requests to downloader.aspx and apply any future vendor patches or updates immediately

Generated by OpenCVE AI on September 28, 2026 at 18:31 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 01 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 28 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description A weakness has been identified in PMWeb 7.x/8.x/2025.x. This issue affects some unknown processing of the file downloader.aspx. This manipulation of the argument FullFileName/FileName causes path traversal. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Title PMWeb downloader.aspx path traversal
First Time appeared Pmweb
Pmweb pmweb
Weaknesses CWE-22
CPEs cpe:2.3:a:pmweb:pmweb:*:*:*:*:*:*:*:*
Vendors & Products Pmweb
Pmweb pmweb
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-10-01T14:34:24.993Z

Reserved: 2026-09-27T18:47:50.331Z

Link: CVE-2026-101082

cve-icon Vulnrichment

Updated: 2026-10-01T14:34:19.822Z

cve-icon NVD

Status : Deferred

Published: 2026-09-28T17:17:48.083

Modified: 2026-10-01T15:17:22.693

Link: CVE-2026-101082

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-28T19:15:05Z

Weaknesses
  • CWE-22

    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')