CVE-2015-8832 Dotclear CVE debrief

Who should care

Dotclear administrators, hosting providers, and security teams running versions before 2.8.2, especially where low-privilege accounts can manage media items or create/manage entries and comments.

Technical summary

NVD describes multiple incomplete blacklist vulnerabilities in Dotclear's core upload handling. The issue affects authenticated users with "manage their own media items" and "manage their own entries and comments" permissions. Because the file-type blacklist was incomplete, an attacker could upload a web-executable file with a PHP-related extension and obtain arbitrary PHP execution on the server. The NVD record rates the impact as network exploitable with low attack complexity, low privileges required, no user interaction, and high confidentiality, integrity, and availability impact.

Defensive priority

High. This is a remotely reachable, authenticated RCE path with full impact, and the vendor fixed it in Dotclear 2.8.2.

Recommended defensive actions

• Upgrade Dotclear to 2.8.2 or later immediately.
• Review accounts that can manage media items or entries/comments and remove unnecessary privileges.
• Audit uploaded content for unexpected PHP-related file types and investigate any suspicious uploads.
• Verify that web server configuration does not execute user-uploaded files from media or attachment directories.
• Check logs and file listings for signs of abuse around the affected upload workflow.
• Use the supplied vendor release notes and third-party advisories to confirm remediation steps and version boundaries before reopening upload capabilities.

Evidence notes

The debrief is based on the NVD record and the referenced vendor release notes. The supplied NVD metadata states that Dotclear versions through 2.8.1 are vulnerable and that the issue is fixed in 2.8.2. The NVD CVSS vector is CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, and the listed weakness is CWE-284. Reference links include the Dotclear 2.8.2 release notes, a vendor patch reference, and third-party advisories that corroborate public disclosure. No KEV listing or ransomware-campaign linkage is present in the supplied corpus.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.