CVE-2026-129260

Mereithhh VanBlog Custom local.provider.ts fs.readFileSync path traversal

Published Nov 14, 2026 CVSS 4.0 · 5.1 Medium EPSS n/a KEV · Not listed
Description
A security vulnerability has been detected in Mereithhh VanBlog up to 0.54.0. This vulnerability affects the function fs.readFileSync of the file local.provider.ts of the component Custom Page Handler. The manipulation of the argument path leads to path traversal. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. Upgrading to version test-20261013 is able to resolve this issue. The identifier of the patch is d63aa163f10b6dc1080e2368fe8e71aa95b765cb. Upgrading the affected component is advised.

Analysis

AI-generated

Technical impact

The vulnerability is a path traversal flaw in the fs.readFileSync function of the local.provider.ts component within the Custom Page Handler of Mereithhh VanBlog. This weakness (CWE‑22) allows an attacker to craft a file path that bypasses directory boundaries and read arbitrary files on the server. The exposed functionality can be invoked remotely, meaning a remote user can trigger the read operation without needing local access, potentially exposing sensitive configuration files or other secrets.

Affected Systems

Mereithhh VanBlog versions up to and including 0.54.0 are vulnerable. The patched release test‑20261013, which incorporates commit d63aa163f10b6dc1080e2368fe8e71aa95b765cb, addresses the flaw. Any installations running earlier releases or custom forks that have not applied this commit remain impacted.

Risk and Exploitability

The CVSS score of 5.1 indicates a moderate severity. EPSS information is not available, and the vulnerability is not listed in the CISA KEV catalog. Nonetheless, the flaw can be exploited over the network by supplying a crafted path argument to the Custom Page Handler, leading to file disclosure. Because the affected function processes user input directly, successful exploitation requires only remote reach to the application and does not depend on elevated privileges on the host.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade the VanBlog installation to release test‑20261013 or newer, which includes the patch from commit d63aa163f10b6dc1080e2368fe8e71aa95b765cb.
  • Integrate the patched local.provider.ts file (or the commit referenced above) into your codebase to ensure that path arguments are properly validated and restricted.
  • If an immediate upgrade is not feasible, restrict or disable the Custom Page Handler endpoint to trusted users only, thereby limiting the attack surface until a fix can be applied.

Generated by OpenCVE AI on November 14, 2026 at 19:34 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Description A security vulnerability has been detected in Mereithhh VanBlog up to 0.54.0. This vulnerability affects the function fs.readFileSync of the file local.provider.ts of the component Custom Page Handler. The manipulation of the argument path leads to path traversal. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. Upgrading to version test-20261013 is able to resolve this issue. The identifier of the patch is d63aa163f10b6dc1080e2368fe8e71aa95b765cb. Upgrading the affected component is advised.
Title Mereithhh VanBlog Custom local.provider.ts fs.readFileSync path traversal
First Time appeared Mereithhh
Mereithhh vanblog
Weaknesses CWE-22
CPEs cpe:2.3:a:mereithhh:vanblog:*:*:*:*:*:*:*:*
Vendors & Products Mereithhh
Mereithhh vanblog
References
Metrics cvssV2_0

{'score': 5.8, 'vector': 'AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 6.6, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C'}

cvssV3_1

{'score': 6.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P'}

Weaknesses
  • CWE-22

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

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Nov 14, 2026, 3:45 PM
Reserved
Nov 13, 2026, 8:03 PM
Status
Deferred
Published
Nov 14, 2026, 4:17 PM
Modified
Nov 14, 2026, 4:17 PM