Vulnerability Details : CVE-2021-31551
An issue was discovered in the PageForms extension for MediaWiki through 1.35.2. Crafted payloads for Token-related query parameters allowed for XSS on certain PageForms-managed MediaWiki pages.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-31551
- cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-31551
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 48 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-31551
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
|
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-2021-31551
-
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-2021-31551
-
https://gerrit.wikimedia.org/r/q/I5e0abbc2f80e6bda255b3b32a4df39a7fe7d3793
I5e0abbc2f80e6bda255b3b32a4df39a7fe7d3793 · Gerrit Code ReviewIssue Tracking;Third Party Advisory
-
https://gerrit.wikimedia.org/r/q/I20b63bd38779d2ccbe2d86f9879df85ca3b685f6
I20b63bd38779d2ccbe2d86f9879df85ca3b685f6 · Gerrit Code ReviewIssue Tracking;Third Party Advisory
-
https://phabricator.wikimedia.org/T259433
⚓ T259433 XSS issue in Extension:PageFormsThird Party Advisory
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https://gerrit.wikimedia.org/r/q/Ibe68b070ee791cd0c8e7f50eb04ac4e066b1512c
Ibe68b070ee791cd0c8e7f50eb04ac4e066b1512c · Gerrit Code ReviewIssue Tracking;Third Party Advisory
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