Security readout for executives and security teams
Plain-English summary
IBM Maximo Asset Management 7.6.0 and 7.6.1 can store malicious JavaScript in its web interface. If that script runs inside a trusted user session, it can change page behavior and may expose credentials. Treat this as a moderate business risk for environments where Maximo is broadly accessible or used by privileged operators.
Executive priority
Prioritize remediation during the normal vulnerability cycle, faster if Maximo is internet-facing or used by privileged operations staff. The main concern is credential exposure inside trusted sessions, not service outage.
Technical view
CVE-2021-20374 is a stored cross-site scripting issue in IBM Maximo Asset Management 7.6.0 and 7.6.1. The CVSS 3.0 score is 6.5. Source data describes network reachability, low complexity, no privileges or user interaction, low confidentiality and integrity impact, and no availability impact.
Likely exposure
Exposure is limited to organizations running IBM Maximo Asset Management 7.6.0 or 7.6.1, especially internet-accessible or broadly reachable Web UI deployments.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. IBM X-Force records exploit maturity as high in the supplied CVSS context, but the bundle does not provide exploit detail.
Researcher notes
Evidence is enough to identify affected product versions and vulnerability class, but the bundle does not include vulnerable fields, exploit steps, or exact fix package names. Avoid assuming broader IBM Maximo products are affected.
Mitigation direction
- Check IBM advisory 6454205 for official remediation guidance.
- Apply IBM-provided fixes or upgrades for affected Maximo versions.
- Restrict Maximo Web UI access to trusted networks and users.
- Review stored content for unexpected script-bearing entries.
- Monitor for credential misuse around Maximo sessions.
Validation and detection
- Inventory deployed Maximo versions and flag 7.6.0 or 7.6.1.
- Confirm whether IBM advisory remediation is installed.
- Review Maximo Web UI exposure from internet and internal networks.
- Inspect relevant stored records for suspicious script content without executing it.
- Check logs for unusual session, credential, or page-modification activity.
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.
CVE-2021-20374 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
- 6.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/UI:N/S:U/AV:N/I:L/PR:N/C:L/A:N/AC:L/RC:C/E:H/RL:O
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:3.0/UI:N/S:U/AV:N/I:L/PR:N/C:L/A:N/AC:L/RC:C/E:H/RL:O3.92.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.5MediumVector: CVSS:3.0/UI:N/S:U/AV:N/I:L/PR:N/C:L/A:N/AC:L/RC:C/E:H/RL:O
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ibm.com/support/pages/node/6454205CVE reference · x_refsource_CONFIRM
- ibm-maximo-cve202120374-xss (195522)CVE reference · vdb-entry, x_refsource_XF
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.
