Security readout for executives and security teams
Plain-English summary
CentOS Web Panel’s unprivileged user portal has a SQL injection issue in the idsession POST parameter. For hosting environments, this matters because control panels sit close to account, server, and operational data. The provided sources do not give affected versions, CVSS, or a confirmed fixed release.
Executive priority
Treat this as a high-priority control-panel risk until version and fix status are confirmed. The absence of CVSS and KEV evidence lowers certainty, not potential business impact.
Technical view
CVE-2021-31316 describes SQL injection in the idsession HTTP POST parameter in CentOS Web Panel’s unprivileged user portal. The public advisory reference title indicates a root RCE impact path, but the source bundle does not include technical proof, affected versions, or remediation details.
Likely exposure
Likely exposure is internet-facing CentOS Web Panel deployments with the unprivileged user portal enabled. Exact vulnerable versions are not identified in the supplied CVE data.
Exploitation context
The CVE is not listed in CISA KEV, and the supplied sources do not confirm active exploitation. A public Shielder advisory exists, so vulnerability details are publicly referenced.
Researcher notes
Evidence is limited to the CVE description and one public advisory reference. Do not assume affected versions, exploit availability, or remediation beyond vendor confirmation.
Mitigation direction
- Check CentOS Web Panel and Shielder guidance for fixed versions or vendor mitigations.
- Restrict access to the user portal to trusted networks where operationally possible.
- Review exposed hosting control panels for unnecessary internet access.
- Prioritize upgrade or replacement if no vendor-supported fix is available.
Validation and detection
- Inventory CentOS Web Panel instances and confirm portal exposure.
- Identify installed versions and compare them with vendor advisory guidance.
- Review application and database logs for suspicious idsession parameter activity.
- Confirm whether compensating access controls protect the user portal.
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.
Database behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-31316 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.shielder.it/advisories/centos-web-panel-idsession-root-rce/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.