Security readout for executives and security teams
Plain-English summary
CVE-2023-38329 is a reflected XSS issue in eGroupWare 17.1.20190111. An attacker could craft a link that runs script in a user’s browser if the user opens it. This can support account abuse or data exposure within the user’s session, but it requires user interaction.
Executive priority
Treat as a medium-priority web application issue. Prioritize internet-facing eGroupWare systems and environments with privileged browser sessions. It is not evidenced as actively exploited in the provided bundle, but reflected XSS can still enable targeted account abuse.
Technical view
The CVE describes unsanitized reflection of the HTTP GET user parameter in calendar/freebusy.php, reachable by unauthenticated remote attackers. It is classified as CWE-79 with CVSS 3.1 score 6.1: network attack vector, low complexity, no privileges, user interaction required, changed scope, low confidentiality and integrity impact.
Likely exposure
Exposure is most likely where eGroupWare 17.1.20190111 is internet-accessible and calendar/freebusy.php is reachable. The source bundle’s affected metadata is incomplete, so confirm actual deployed versions and vendor applicability before scoping beyond the named version.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Practical exploitation would require convincing a user to visit attacker-controlled content or a crafted URL, so phishing and trusted-user workflows are relevant risk factors.
Researcher notes
Evidence is limited to CVE metadata and the referenced disclosure page. The affected field is populated as n/a despite the description naming eGroupWare 17.1.20190111. No official patch level, workaround, or exploit-in-the-wild evidence is provided in the bundle.
Mitigation direction
- Check eGroupWare vendor guidance for fixed versions or official mitigations.
- Upgrade affected eGroupWare instances when an applicable vendor fix is available.
- Restrict public access to calendar/freebusy.php where business use permits.
- Apply output encoding and input handling if maintaining a local patch.
- Increase monitoring for suspicious requests using the user parameter.
Validation and detection
- Inventory eGroupWare deployments and identify any version 17.1.20190111 instances.
- Confirm whether calendar/freebusy.php is externally reachable.
- Review access logs for unusual user parameter values or referral patterns.
- Verify remediation using non-destructive reflected-input checks in a controlled environment.
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-2023-38329 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
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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.
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:R/S:C/C:L/I:L/A:N2.82.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.gruppotim.it/it/footer/red-team.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 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.