Security readout for executives and security teams
Plain-English summary
CVE-2023-29454 is a stored XSS issue in Zabbix user forms. An authenticated, low-privileged attacker may save malicious content that later runs in another user’s browser. Business risk is mainly account/session exposure and unauthorized actions in the monitoring console.
Executive priority
Treat this as a moderate remediation item. Prioritize internet-facing or multi-user Zabbix consoles because successful exploitation could expose sensitive monitoring data or enable limited actions through a victim’s browser session.
Technical view
The CVE describes persistent cross-site scripting in Zabbix 4.0.0, 5.0.0, and 6.0.0. The CVSS 3.1 score is 5.4, with network reachability, high attack complexity, low privileges required, user interaction required, high confidentiality impact, low integrity impact, and no availability impact.
Likely exposure
Exposure is most likely where affected Zabbix versions are reachable by authenticated users, especially shared administration, customer, or contractor environments. Internet exposure increases opportunity, but the source bundle does not state unauthenticated exploitation.
Exploitation context
The provided sources do not report active exploitation, and CISA KEV status is false. Exploitation requires a user with some privileges and a victim visiting affected Zabbix pages where stored user-form content is rendered.
Researcher notes
CWE is listed as CWE-20, though the description is stored XSS. Evidence in the bundle identifies affected Zabbix versions and references ZBX-22985 plus Debian advisories, but it does not include exact fixed upstream versions or exploit details.
Mitigation direction
- Review Zabbix ZBX-22985 and Debian advisories for vendor-approved fixed versions or packages.
- Upgrade affected Zabbix deployments using vendor or distribution security guidance.
- Restrict Zabbix access to trusted networks and authenticated users only.
- Review user roles and remove unnecessary low-privilege accounts.
- Monitor Zabbix web access and admin activity for suspicious session behavior.
Validation and detection
- Inventory Zabbix deployments and identify versions 4.0.0, 5.0.0, and 6.0.0.
- Confirm whether Debian security updates or Zabbix vendor fixes are installed.
- Review user-form rendering paths for proper output encoding.
- Verify untrusted users cannot modify fields shown to privileged users.
- Check logs for unusual edits to user profile or account fields.
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-20: 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 lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-29454 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
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/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:H/PR:L/UI:R/S:U/C:H/I:L/A:N1.24.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://support.zabbix.com/browse/ZBX-22985CVE 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.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.