Security readout for executives and security teams
Plain-English summary
CVE-2023-23326 lets a low-privilege authenticated AvantFAX 3.3.7 user save malicious script in their email address. When an administrator views the admin dashboard, that script can run in the administrator’s browser and may expose the admin session.
Executive priority
Treat as a moderate-priority application security issue. It is not described as actively exploited, but it can turn a low-privilege account into administrator session compromise if the affected workflow exists.
Technical view
This is stored cross-site scripting, CWE-79, in AvantFAX 3.3.7. The reported sink is display of a user-controlled email address on the admin dashboard. CVSS 3.1 is 5.4: network reachable, low attack complexity, low privileges required, administrator interaction required, changed scope, low confidentiality and integrity impact.
Likely exposure
Exposure is limited to organizations running AvantFAX 3.3.7 with authenticated user accounts. The source bundle does not provide CPEs, vendor metadata, deployment prevalence, or hosted-service indicators, so asset confirmation is required.
Exploitation context
The CVE is not listed as KEV in the supplied data, and the bundle does not cite active exploitation. Abuse requires a low-privilege authenticated account and an administrator viewing the affected dashboard content.
Researcher notes
The record’s affected-product metadata is incomplete, but the description and reference consistently identify AvantFAX 3.3.7. No patch details are provided in the bundle. Avoid assuming later versions are safe without vendor or project confirmation.
Mitigation direction
- Check AvantFAX project or vendor guidance for a fixed release or official workaround.
- Inventory AvantFAX deployments and prioritize any instance running version 3.3.7.
- Restrict low-privilege account creation and admin dashboard access pending vendor guidance.
- Review stored user email values and remove suspicious script-like content.
- Consider compensating controls that reduce untrusted user input reaching administrators.
Validation and detection
- Confirm whether AvantFAX is deployed and record the exact version.
- Identify instances running AvantFAX 3.3.7.
- Review user profile email fields for unexpected markup or script-like content.
- Verify, in an authorized test environment, that dashboard output safely encodes email addresses.
- Check admin session logs after suspicious profile changes.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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-2023-23326 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:L/PR:L/UI:R/S:C/C:L/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.
SSVC decision data
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:L/UI:R/S:C/C:L/I:L/A:N2.32.7CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/superkojiman/vulnerabilities/blob/master/AvantFAX-3.3.7/README.mdCVE reference, mitre
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 Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.