CVE-2021-28935
CMS Made Simple (CMSMS) 2.2.15 allows authenticated XSS via the /admin/addbookmark.php script...
CMS Made Simple (CMSMS) 2.2.15 allows authenticated XSS via the /admin/addbookmark.php script through the Site Admin > My Preferences > Title field.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
CMS Made Simple (CMSMS) 2.2.15 allows authenticated XSS via the /admin/addbookmark.php script through the Site Admin > My Preferences > Title field.
- Record
CVE-2021-28935- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
CMS Made Simple (CMSMS) 2.2.15 allows authenticated XSS via the /admin/addbookmark.php script through the Site Admin > My Preferences > Title field.
- Record
CVE-2021-28935- Updated
- 2026-11-02
EUVDEUVD-2021-15586 No score
CMS Made Simple (CMSMS) 2.2.15 allows authenticated XSS via the /admin/addbookmark.php script through the Site Admin > My Preferences > Title field.
- Record
EUVD-2021-15586- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wp8v-vmmw-x266 No score
CMS Made Simple (CMSMS) 2.2.15 allows authenticated XSS via the /admin/addbookmark.php script...
CMS Made Simple (CMSMS) 2.2.15 allows authenticated XSS via the /admin/addbookmark.php script through the Site Admin > My Preferences > Title field.
- Record
GHSA-wp8v-vmmw-x266- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | CMS Made Simple 2.2.15 - 'title' Cross-Site Scripting (XSS) | 2021-04-22 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-28935 is a medium vulnerability (CVSS 5.4) in Cmsmadesimple Cms Made Simple, published March 30, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.57%, the 75th percentile. No source names a fixed version.