Security readout for executives and security teams
Plain-English summary
CVE-2026-3075 affects the WordPress Simple Ajax Chat plugin through version 20251121. An unauthenticated attacker could retrieve embedded sensitive system information. The published severity is medium because the impact is limited to confidentiality, with no stated integrity or availability impact.
Executive priority
Prioritize within normal vulnerability management for public WordPress properties, especially customer-facing sites. The issue is remotely reachable and unauthenticated, but published impact is limited to low confidentiality exposure and there is no cited active exploitation.
Technical view
The issue is classified as CWE-497: exposure of sensitive system information to an unauthorized control sphere. CVSS 3.1 is 5.3: network exploitable, low complexity, no privileges, no user interaction, confidentiality low, integrity and availability none. Sources identify Jeff Starr Simple Ajax Chat package simple-ajax-chat through <= 20251121 as affected.
Likely exposure
Exposure is most relevant to public WordPress sites running Simple Ajax Chat at or below version 20251121. Internet-facing sites have higher practical exposure because the CVSS vector indicates network access and no authentication are required.
Exploitation context
The provided sources do not report active exploitation, and this CVE is not marked in KEV. No exploit details are included in the source bundle. Treat this as a disclosure-risk issue requiring inventory and vendor-guided remediation rather than an emergency compromise indicator.
Researcher notes
Evidence is sparse. The CVE and Patchstack entry identify sensitive data exposure but do not provide technical root cause, proof of concept, fixed version, or workaround in the provided bundle. Avoid assuming broader product impact beyond Simple Ajax Chat through <= 20251121.
Mitigation direction
- Inventory WordPress sites for the Simple Ajax Chat plugin.
- Identify installed plugin versions and flag versions <= 20251121.
- Check vendor, WordPress plugin, and Patchstack guidance for a fixed version or mitigation.
- Update or disable the plugin according to trusted vendor guidance.
- Review exposed chat-related pages for unintended information disclosure.
Validation and detection
- Confirm whether Simple Ajax Chat is installed on each WordPress site.
- Record the installed plugin version from administrative inventory.
- Compare installed versions against the affected range: <= 20251121.
- Verify any update or disablement through standard change management.
- Monitor security advisories for revised affected-version or fix information.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-497: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-3075 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Exposure of Sensitive System Information to an Unauthorized Control Sphere
Exposure of Sensitive System Information to an Unauthorized Control Sphere represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.