Security readout for executives and security teams
Plain-English summary
CVE-2021-31738 is a cross-site scripting issue in the login page of Adiscon LogAnalyzer 4.1.10 and 4.1.11. If the login page is reachable, an attacker may be able to run unwanted browser-side script against a user who interacts with the affected page. Public data provided here does not include CVSS, CWE, or confirmed exploitation.
Executive priority
Treat this as a targeted remediation item, not an emergency based on current evidence. Prioritize internet-facing or broadly accessible LogAnalyzer login pages because XSS on an administrative login surface can support phishing, session abuse, or credential theft scenarios.
Technical view
The CVE record describes XSS in login.php for Adiscon LogAnalyzer versions 4.1.10 and 4.1.11. The supplied metadata does not specify reflected versus stored behavior, authentication requirements, input vector, impact scope, or fixed version. Validation should focus on identifying deployed LogAnalyzer versions and whether login.php is exposed to untrusted networks.
Likely exposure
Exposure is most likely where Adiscon LogAnalyzer 4.1.10 or 4.1.11 is deployed and its login.php page is reachable by untrusted users. Internal-only deployments reduce reach but still expose administrators and operations staff who access the login page.
Exploitation context
The supplied bundle does not show active exploitation, and KEV is false. Public evidence here only establishes the existence of an XSS issue in specific LogAnalyzer versions. No exploit maturity, weaponized campaign, or reliable attack preconditions are provided.
Researcher notes
The source data is sparse: no CVSS vector, CWE classification, fixed version, exploit prerequisites, or proof details are included in the bundle. Avoid assuming affected versions beyond 4.1.10 and 4.1.11. Further analysis should start from the SySS advisory and vendor release notes.
Mitigation direction
- Check Adiscon guidance for fixed versions or vendor-recommended remediation.
- Upgrade affected LogAnalyzer 4.1.10 or 4.1.11 deployments when a supported fix is available.
- Restrict access to LogAnalyzer login.php to trusted administrative networks.
- Use SSO, VPN, or access controls where feasible to reduce exposure.
- Prioritize remediation for internet-facing or shared administrative deployments.
Validation and detection
- Inventory systems running Adiscon LogAnalyzer and record exact versions.
- Identify whether login.php is reachable from the internet or untrusted networks.
- Review web server access logs for unusual requests to login.php.
- Confirm whether vendor documentation lists a fixed release or mitigation.
- Retest after remediation using safe, non-destructive XSS checks.
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-2021-31738 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-024.txtCVE 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.