Security readout for executives and security teams
Plain-English summary
BloofoxCMS versions 0.5.1.0 through 0.5.2.1 have a stored cross-site scripting issue in article text. An authenticated user can save script content that later runs in another user’s browser. Business impact is mainly account/session compromise and unauthorized actions within the CMS, not direct server takeover.
Executive priority
Treat as a targeted web application risk, not an emergency unless BloofoxCMS is internet-facing with many content editors. Prioritize inventory, access restriction, and vendor guidance review.
Technical view
CVE-2021-47906 is CWE-79 stored XSS in the BloofoxCMS articles text parameter. The CVSS 3.1 score is 6.4, requiring network access and low privileges, with changed scope and low confidentiality/integrity impact. Public references include an Exploit-DB entry and VulnCheck advisory.
Likely exposure
Exposure is limited to organizations running BloofoxCMS 0.5.1.0 through 0.5.2.1, especially where untrusted or broadly assigned authenticated users can create or edit articles.
Exploitation context
A public exploit reference exists, but the provided sources do not show CISA KEV listing or confirmed active exploitation. Attackers need authenticated CMS access to plant malicious content that affects viewers of the stored article.
Researcher notes
The source bundle names affected versions but does not identify a specific fixed release. Do not assume active exploitation from Exploit-DB alone. Validation should focus on version exposure, authenticated editor access, and stored content review.
Mitigation direction
- Identify all BloofoxCMS deployments and their exact versions.
- Check BloofoxCMS vendor pages and release notes for fixed versions or guidance.
- Restrict article creation and editing to trusted users only.
- Review CMS accounts and remove unnecessary authenticated access.
- Apply output encoding and input sanitization if maintaining custom code.
- Monitor CMS content for unexpected script-like markup.
Validation and detection
- Confirm whether BloofoxCMS is present in asset inventory.
- Verify deployed version is outside 0.5.1.0 through 0.5.2.1.
- Review roles allowed to create or edit articles.
- Inspect article text fields for suspicious embedded scripts.
- Check web logs for unusual authenticated article edits.
- Confirm remediation against vendor or release documentation.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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-2021-47906 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
- 6.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/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:N/S:C/C:L/I:L/A:N3.12.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-49492CVE reference · exploit
- Official Vendor HomepageCVE reference · product
- BloofoxCMS Software ReleasesCVE reference · product
- VulnCheck Advisory: BloofoxCMS 0.5.2.1 - 'text' Stored Cross Site ScriptingCVE reference · third-party-advisory
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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.