CVE-2026-87727 Details
Description
a-blog cms Ver. 3.2.33 and earlier contains a path traversal vulnerability, which allows an unauthenticated attacker to read or delete arbitrary files on the affected product.
A path traversal vulnerability has been identified in a-blog CMS versions through 3.2.33. This vulnerability allows an unauthenticated attacker to read or delete arbitrary files on the server. The issue arises when the 'Attaching files to emails addressed to the administrator' feature is enabled in form settings.
Users are advised to update a-blog CMS to version 3.2.33 or later. For versions 2.11.x or earlier, no update is available, and users should consider upgrading to version 3.0 or later. As a temporary measure, the file attachment feature for emails to the administrator can be disabled in the form settings.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 11, 2026CISA-ADP
Assessed Sep 11, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://developer.a-blogcms.jp/blog/news/JVN-20829034.html | [email protected] | AdvisoryRemedyVendor |
| https://jvn.jp/en/jp/JVN20829034/ | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| a-blog cms | <= 3.2.33 (semver) <= 3.1.76 (semver) <= 3.0.63 (semver) <= 2.11 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 11, 2026 | CVE Modified | CISA-ADP |
| Sep 11, 2026 | New CVE Received | [email protected] |