Security readout for executives and security teams
Plain-English summary
CMS Made Simple 2.2.15 has a stored cross-site scripting issue in the Add Category Name field. A user with access to that action could save content that later runs in another user's browser. The public record does not provide severity scoring, a vendor fix version, or evidence of active exploitation.
Executive priority
Treat this as a moderate-priority CMS hardening issue. It is not documented as actively exploited, but stored XSS can compromise administrator sessions or content integrity if an attacker has CMS access. Prioritize internet-facing or multi-user CMS instances first.
Technical view
CVE-2021-43154 describes authenticated stored XSS in CMS Made Simple 2.2.15 through the Name field during Add Category handling in moduleinterface.php. The CVE bundle does not include CVSS, CWE, affected CPEs, or confirmed remediation details. KEV status is false.
Likely exposure
Exposure is most likely limited to CMS Made Simple 2.2.15 deployments where authenticated users can access the Add Category workflow in moduleinterface.php. Public-facing sites may still face impact if privileged CMS sessions or admin users view stored malicious content.
Exploitation context
The cited material supports authenticated stored XSS, not active exploitation. There is no KEV listing and no source in the bundle claiming exploitation in the wild. Practical abuse appears to require CMS access to create or modify a category name.
Researcher notes
The record is sparse: no CVSS, CWE, CPE, fix version, or vendor advisory is included. Analysis should stay anchored to CMS Made Simple 2.2.15, authenticated Add Category behavior, and the Name field in moduleinterface.php unless additional vendor evidence is obtained.
Mitigation direction
- Inventory CMS Made Simple deployments and identify any running version 2.2.15.
- Check CMS Made Simple vendor guidance or release notes for a supported fix.
- Restrict category-management permissions to trusted administrators only.
- Review existing category names for unexpected script-like or HTML content.
- Consider temporary administrative access controls until vendor remediation is confirmed.
Validation and detection
- Confirm whether any asset runs CMS Made Simple 2.2.15.
- Verify who can access Add Category functionality in moduleinterface.php.
- Review recent category creation or modification activity for suspicious entries.
- Test remediation only in a controlled environment, without weaponized payloads.
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-2021-43154 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://elprofesor.me/2021/10/24/stored-cross-site-scripting-via-m1-name-authenticatedCVE 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.