Vulnerability Details : CVE-2021-42045
An issue was discovered in SecurePoll in the Growth extension in MediaWiki through 1.36.2. Simple polls allow users to create alerts by changing their User-Agent HTTP header and submitting a vote.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-42045
- cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-42045
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-42045
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST |
CWE ids for CVE-2021-42045
-
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: nvd@nist.gov (Primary)
References for CVE-2021-42045
-
https://gerrit.wikimedia.org/r/q/I4f04083cd00884d3b85245460774c81c7639a578
I4f04083cd00884d3b85245460774c81c7639a578 · Gerrit Code ReviewPatch;Vendor Advisory
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https://phabricator.wikimedia.org/T289385
⚓ T289385 Modified HTTP headers allow XSS in SecurePoll (CVE-2021-42045)Vendor Advisory
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