Security readout for executives and security teams
Plain-English summary
CVE-2020-1775 is a low-severity information disclosure issue in OTRS. In affected versions, BCC recipients from emails sent by OTRS can appear in article detail on the external interface, exposing addresses that were intended to remain hidden.
Executive priority
Treat this as a privacy and confidentiality cleanup item, not an emergency. Prioritize affected customer-facing OTRS instances because exposed BCC recipients may create trust, privacy, or relationship-management issues.
Technical view
The issue is CWE-200 information exposure affecting OTRS 8.0.3 and earlier, and 7.0.17 and earlier. CVSS 3.1 is 3.5: network-reachable, low complexity, low privileges required, user interaction required, confidentiality impact low, with no integrity or availability impact.
Likely exposure
Exposure is most likely where affected OTRS 7.0.x or 8.0.x deployments use the external interface and users can access article detail views for emails sent from OTRS.
Exploitation context
The provided sources do not report active exploitation, and this CVE is not listed as KEV. Abuse appears limited to disclosure of BCC recipient information through legitimate interface access, not code execution or system takeover.
Researcher notes
Evidence is narrow but consistent: affected versions, disclosure location, CWE, and CVSS are provided. The bundle does not include exploit reports, detailed patch notes, or configuration-specific conditions beyond external interface article detail exposure.
Mitigation direction
- Identify OTRS deployments and confirm whether affected 7.0.x or 8.0.x versions are present.
- Review the OTRS security advisory and apply vendor-supported updates or guidance.
- Restrict external interface access to users with a clear business need.
- Avoid placing sensitive recipients in BCC from affected OTRS systems until remediated.
Validation and detection
- Confirm deployed OTRS version against 8.0.3 and prior, or 7.0.17 and prior.
- Verify whether the external interface is enabled and reachable by non-staff users.
- Review article detail views for sent mail to confirm BCC fields are not exposed.
- Check access controls for users who can view external article details.
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 lookupCVE-2020-1775 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
- Low
- CVSS
- 3.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/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:L/UI:R/S:U/C:L/I:N/A:N2.11.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3.5LowVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://otrs.com/release-notes/otrs-security-advisory-2020-12/CVE reference · x_refsource_MISC
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.