Vulnerability Details : CVE-2021-39340
The Notification WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/src/classes/Utils/Settings.php file which made it possible for attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 7.2.4. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-39340
- cpe:2.3:a:bracketspace:notification:*:*:*:*:*:wordpress:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-39340
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 24 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-39340
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:N/AC:H/Au:S/C:N/I:P/A:N |
3.9
|
2.9
|
NIST | |
|
4.8
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
1.7
|
2.7
|
Wordfence |
CWE ids for CVE-2021-39340
-
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: security@wordfence.com (Primary)
References for CVE-2021-39340
-
https://plugins.trac.wordpress.org/browser/notification/tags/7.2.4/src/classes/Utils/Settings.php#L167
Settings.php in notification/tags/7.2.4/src/classes/Utils – WordPress Plugin RepositoryPatch;Third Party Advisory
-
https://wordfence.com/vulnerability-advisories/#CVE-2021-39340
Vulnerability Advisories - WordfenceThird Party Advisory
-
https://github.com/BigTiger2020/word-press/blob/main/Notification.md
word-press/Notification.md at main · BigTiger2020/word-press · GitHubExploit;Third Party Advisory
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