Security readout for executives and security teams
Plain-English summary
Roundcube Webmail versions before 1.5.7 and 1.6.7 contain a cross-site scripting flaw involving SVG animate attributes. A user must interact with malicious content, but successful abuse could run script in the webmail session and affect mail confidentiality or account actions.
Executive priority
Treat as urgent for any internet-facing Roundcube service because CISA KEV indicates real-world exploitation, despite a medium CVSS score. Prioritize patch confirmation over extended analysis.
Technical view
CVE-2024-37383 is CWE-79 XSS in Roundcube Webmail. The CVSS vector shows network access, low complexity, no privileges required, user interaction required, changed scope, and low confidentiality and integrity impact. Fixed releases are 1.5.7 and 1.6.7.
Likely exposure
Organizations hosting Roundcube Webmail on affected versions are exposed, especially internet-facing webmail portals. Exposure also depends on package provenance, distro backports, and whether deployed instances have received Roundcube or Debian security updates.
Exploitation context
The supplied bundle marks this CVE as CISA KEV, supporting known exploitation. The provided sources do not include exploit details, campaign attribution, affected scale, or proof that every vulnerable deployment is reachable.
Researcher notes
The public bundle identifies SVG animate attributes as the XSS vector and points to Roundcube fix releases and a commit. Evidence is sufficient for version-based exposure decisions, but incomplete for exploit mechanics or telemetry conclusions.
Mitigation direction
- Upgrade Roundcube 1.6.x deployments to 1.6.7 or later.
- Upgrade Roundcube 1.5.x deployments to 1.5.7 or later.
- Apply Debian LTS roundcube security updates where applicable.
- Inventory externally exposed Roundcube instances and confirm package source.
- Check current vendor guidance before using compensating controls as a substitute.
Validation and detection
- Identify all Roundcube Webmail deployments and record exact versions.
- Confirm fixed release level or distro backport includes CVE-2024-37383 remediation.
- Review package changelogs against the Roundcube release or Debian advisory.
- Check webmail access logs for suspicious activity around reported exposure windows.
- Avoid validation methods that reproduce XSS against production users.
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-2024-37383 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
- Yes
- 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.
CISA KEV status
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://github.com/roundcube/roundcubemail/commit/43aaaa528646877789ec028d87924ba1accf5242CVE reference
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.7CVE reference
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.7CVE reference
- [debian-lts-announce] 20240617 [SECURITY] [DLA 3835-1] roundcube security updateCVE reference · mailing-list
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-37383CVE reference · government-resource
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.