Security readout for executives and security teams
Plain-English summary
CVE-2021-41948 is a reported cross-site scripting issue in the Contact Us plugin for Subrion CMS versions up to 4.2.1. The source bundle says the issue is tied to the plugin's “List of subjects” field. Business risk depends on whether the vulnerable plugin is installed and exposed on public sites.
Executive priority
Handle as a targeted website hygiene issue, not an emergency based on current evidence. Prioritize confirmation on public-facing Subrion sites, then remediate or disable the plugin if present.
Technical view
The CVE describes XSS in the Subrion CMS Contact Us plugin <= 4.2.1 via “List of subjects.” The provided data does not include CVSS, CWE, patch status, or detailed affected CPEs. Treat this as a plugin-specific web application exposure requiring inventory validation before prioritization.
Likely exposure
Likely limited to organizations running Subrion CMS <= 4.2.1 with the Contact Us plugin installed, especially public-facing sites using the subject-list feature.
Exploitation context
The source bundle does not cite active exploitation, and the CVE is not listed as CISA KEV. Public evidence is limited to the CVE records and a GitHub issue reference.
Researcher notes
Evidence is sparse: no CVSS, CWE, CPE, patch details, or exploit status are provided. The key lead is the GitHub issue reference. Avoid assuming broader Subrion CMS compromise beyond the Contact Us plugin path described.
Mitigation direction
- Identify all Subrion CMS deployments and their versions.
- Confirm whether the Contact Us plugin is installed or enabled.
- Check the linked project issue and vendor guidance for fixes.
- Apply any maintainer-provided update when confirmed available.
- Disable the plugin if it is not required for business operations.
Validation and detection
- Inventory public sites for Subrion CMS usage.
- Verify whether Contact Us plugin version is <= 4.2.1.
- Review configured subject-list entries for unexpected script-like content.
- Check web and CMS logs for suspicious contact-form activity.
- Track the GitHub issue for maintainer clarification or remediation.
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-2021-41948 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://github.com/intelliants/subrion-plugin-contact_us/issues/8CVE 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.