Vulnerability Details : CVE-2021-4252
A vulnerability, which was classified as problematic, has been found in WP-Ban. This issue affects the function toggle_checkbox of the file ban-options.php. The manipulation of the argument $_SERVER["HTTP_USER_AGENT"] leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. It is recommended to apply a patch to fix this issue. The identifier VDB-216209 was assigned to this vulnerability.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-4252
- cpe:2.3:a:wp-ban_project:wp-ban:*:*:*:*:*:wordpress:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-4252
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-4252
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.5
|
LOW | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N |
2.1
|
1.4
|
VulDB | |
|
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2021-4252
-
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.Assigned by: cna@vuldb.com (Primary)
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: cna@vuldb.com (Primary)
-
The product does not ensure or incorrectly ensures that structured messages or data are well-formed and that certain security properties are met before being read from an upstream component or sent to a downstream component.Assigned by: cna@vuldb.com (Primary)
References for CVE-2021-4252
-
https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76
Merge pull request #11 from jsgm/master · lesterchan/wp-ban@13e0b1e · GitHubPatch;Third Party Advisory
-
https://vuldb.com/?id.216209
CVE-2021-4252 | WP-Ban ban-options.php toggle_checkbox cross site scripting (ID 11)Third Party Advisory
-
https://github.com/lesterchan/wp-ban/pull/11
Fixed Self-XSS for unescaped User-Agent by jsgm · Pull Request #11 · lesterchan/wp-ban · GitHubPatch;Third Party Advisory
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