Security readout for executives and security teams
Plain-English summary
CVE-2023-29450 lets a low-privileged attacker abuse Zabbix JavaScript preprocessing to read files as the local zabbix user on Zabbix Server or Proxy. The main business risk is exposure of sensitive monitoring, credential, or configuration data reachable by that account.
Executive priority
Treat this as a high-priority monitoring-platform issue. Zabbix often has broad operational visibility and sensitive integrations, so compromise of readable local data can create follow-on risk even without public exploitation evidence.
Technical view
The issue affects Zabbix 5.0, 6.0, 6.2, and 6.4. CVSS 3.1 is 8.5 with network attack vector, high complexity, low privileges, no user interaction, scope change, and high confidentiality, integrity, and availability impact. Sources describe unauthorized limited read-only filesystem access through preprocessing.
Likely exposure
Organizations running affected Zabbix Server or Proxy versions are exposed, especially where users can configure JavaScript preprocessing. The bundle does not identify vulnerable subversions, fixed builds, or whether default configurations are exploitable.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. Exploitation requires some Zabbix privileges and high complexity, but impact can be serious because filesystem reads occur as the zabbix service user.
Researcher notes
Evidence is limited to the CVE description, CVSS data, affected major versions, Zabbix issue reference, and Debian advisories. The bundle does not provide exploit details, fixed version numbers, or configuration-specific prerequisites beyond JavaScript preprocessing and low privileges.
Mitigation direction
- Check Zabbix guidance for ZBX-22588 and apply vendor-supported fixed releases.
- If using Debian packages, follow the referenced Debian LTS security advisories.
- Restrict preprocessing configuration rights to trusted administrators until patched.
- Review filesystem permissions for sensitive files readable by the zabbix service account.
Validation and detection
- Inventory all Zabbix Server and Proxy instances and record exact versions.
- Confirm whether any instance runs Zabbix 5.0, 6.0, 6.2, or 6.4.
- Review which users can configure JavaScript preprocessing.
- Check Zabbix audit logs for unexpected preprocessing changes.
- Verify patched package or application versions against vendor or distribution guidance.
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-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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 lookupCWE-552: 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-2023-29450 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
- High
- CVSS
- 8.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
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:H/PR:L/UI:N/S:C/C:H/I:H/A:H1.86Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.5HighVector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://support.zabbix.com/browse/ZBX-22588CVE reference
- https://lists.debian.org/debian-lts-announce/2023/08/msg00027.htmlCVE reference
- https://lists.debian.org/debian-lts-announce/2024/10/msg00000.htmlCVE reference
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 Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Files or Directories Accessible to External Parties
Files or Directories Accessible to External Parties represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.