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CVE Record

CVE-2017-18195: An issue was discovered in tools/conversations/view_ajax.php in Concrete5 before 8.3.0.

An issue was discovered in tools/conversations/view_ajax.php in Concrete5 before 8.3.0. An unauthenticated user can enumerate comments from all blog posts by POSTing requests to /index.php/tools/required/conversations/view_ajax with incremental 'cnvID' integers.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2017-18195 is an information-disclosure flaw in Concrete5 before 8.3.0. A public, unauthenticated visitor could enumerate blog comments that should not be broadly discoverable. The main business risk is unintended exposure of comment content, metadata, or internal discussion accidentally stored in blog conversations.

Executive priority

Treat as a targeted information-disclosure cleanup item, not a confirmed emergency. Prioritize externally exposed legacy Concrete5 sites, because the issue is unauthenticated and public exploit references exist.

Technical view

The issue is in Concrete5's tools/conversations/view_ajax.php before 8.3.0. The source description says unauthenticated requests to the conversation AJAX endpoint could enumerate comments across blog posts by varying conversation identifiers. Public exploit references exist, but the provided sources do not show confirmed active exploitation.

Likely exposure

Internet-facing Concrete5 sites running versions before 8.3.0 are the likely exposure, especially sites using blog posts, conversations, or comment functionality. Evidence in the bundle does not identify affected CPEs, downstream packages, or hosted-service variants.

Exploitation context

The vulnerability is remotely reachable without authentication and has public exploit-oriented references, including Exploit-DB and an NSE script. CISA KEV status is false, and the provided sources do not establish exploitation in the wild.

Researcher notes

The bundle provides a concise vulnerability description, a Concrete5 8.3.0 release reference, a GitHub pull request, Exploit-DB entry, and NSE script reference. It lacks CVSS, CWE, CPE, and confirmed exploitation evidence, so exposure assessment depends on local asset inventory.

Mitigation direction

  • Upgrade Concrete5/concrete5 to 8.3.0 or later using vendor release guidance.
  • Inventory public Concrete5 sites and prioritize any version older than 8.3.0.
  • Review whether blog conversations contain sensitive or regulated content.
  • Check vendor guidance before applying route-level compensating controls.

Validation and detection

  • Confirm the installed Concrete5 version on each public site.
  • Check whether blog, conversation, or comment features are enabled.
  • Review web logs for unusual access to the conversation AJAX endpoint.
  • Verify the site is upgraded to 8.3.0 or later after remediation.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.